
CFC18-0,82
Air-core coil with copper foil conductor and polypropylene insulation – completely free of core-related effects and fully linear even at high levels. CFC18 (AWG18 / 0.823 mm² / Ø 1.024 mm) is ideal for precise correction and transition tasks with maximum mechanical stability and clear fine dynamics.
Technologies
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core.
Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
Characterized by a purity of at least 99.995% copper
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
The conductor of the coil is a film made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the film is not coated with enamel for insulation; instead, a polypropylene film wound together with the film conductor serves as the insulator.
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Real metal foil increases current resistance, reduces vibrations and remains very stable.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Make sure that the left and right channels work identically, important for stable stage and positioning.
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering
Similar configurations
1 VARIANTS
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Our services for manufacturers and cooperation partners
We manufacture coils in-house. This gives us flexibility—from material selection and micro-series production to standard products.
Material & design
Which coil material and design are best suited for your application? We provide independent advice, regardless of whether you ultimately choose a standard product or a custom solution.
Your material and parameter mix
Do you have a specific vision for the material, winding type, and electrical parameters? We can implement combinations outside of our standard range—either using our modular system or through a new development.
Custom small and micro-series
Thanks to our in-house production, we can manufacture coils in very small quantities—starting from a batch size of 1, provided it is economically viable. We can also provide approval samples before full-scale production upon request.

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering

Air coils
Air coils are the uncompromising reference: maximally linear, without distortions caused by the core. They deliver maximum impulse fidelity and particularly natural, open playback. If space and a sufficiently low DC resistance are possible, air is the first choice.
OFC Copper
- Purity: at least 99.995% Cu, often 99.999% (4N) or higher
- Feature: almost oxygen-free (typically <10 ppm)
- Result: more stable grain boundaries, less oxide formation, more uniform electron flow
Polypropylene as the Insulator
The conductor of the coil is a foil made of (Angelique) copper, silver, or (Angelique) silver-gold. Unlike enameled copper wire, for example, the foil is not coated with enamel for insulation; instead, a polypropylene film wound together with the foil conductor serves as the insulator.
Electrical strengths
- Compared to wire enamels, polypropylene has a low dielectric constant and very low dielectric losses → very low parasitic capacitance
- The polypropylene film is thicker than a typical wire enamel coating → further reduced parasitic capacitance
- A foil coil tightly wound with PP film forms an extremely solid block. The softer PP film also provides strong damping against mechanical vibrations.
Massive Metal Foil
Solid metal foil means: A real metal foil forms the electrode — not a wafer-thin coating. This provides very high, uniform conductivity along the coil, reduces field gradients and enables high current carrying capacity. The higher film weight reduces field force-related vibrations and the electrode remains stable even under impulse load. This creates a robust basis for demanding applications that transfers energy directly and in a load-stable manner — without “flickering” on the electrode side.
Tonal effects
- More pressure and control in the bass/root tone, with clearer contours instead of buzzing
- Superior at level peaks: less compression, more headroom and punch without harshness
- Cleaner transients and more stable dynamics, even with fast pulse trains
- Quieter, more ordered sound: less flicker/internal discolouration, better audibility in complex passages
Tight Tolerances
Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.
Tonal Effects
- precise, stable soundstage without drifting
- Coherent overall impression: left and right channels fuse into a single, seamless whole
- characteristic sound is reliably retained even after component replacement/repair
- More stable virtual center and clearer spatial layering
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Sample orders are currently available to business customers only. If you have any questions about our products, you can reach us at any time by email at info@mundorf.com or by phone on +49 221 977705 - 0.
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Art & Voice Medien GmbH
Davenstedter Str. 111,
30453 Hannover
Tel. +49 511 441046
www.highend-hifi-shop.de