From Circuit Diagram to True Music
The crossover is the conductor of every passive loudspeaker. It determines how an electrical signal becomes music – and whether that music ultimately moves us. Since 1985, we have been developing, designing, and manufacturing crossovers for the world's most demanding loudspeaker manufacturers. From initial component selection to production.

Why the Circuit Diagram Is Only the Beginning
A circuit diagram describes the electrical function of a crossover, but not how it will sound. That is determined by how the components are arranged on the board, how the traces are routed, and how the magnetic fields of adjacent inductors interact, for example.
The same components and the same circuit diagram can sound completely different depending on the layout. This is exactly where our over 40 years of experience in high-end audio comes in: we don't just translate your circuit diagram into a circuit board, but into the sound you desire.
The Path to Your Crossover
Component Consulting & Samples
Which inductors, capacitors, and resistors are right for your crossover? We provide recommendations, advice, and free samples for your own listening tests.
Budget Consulting
We allocate your component budget to achieve the greatest sonic impact – including often-underestimated parallel components.
Step-by-Step Fine-Tuning
Iterative listening tests, targeted component replacement, and documented comparisons – until your crossover delivers the exact sound characteristics you envision.
Crossover Design
Component placement and trace routing determine the sound. We translate your circuit diagram into a layout based on strict sonic criteria.
Prototyping & Production
Every production run begins with a pre-production sample, which you check for correct execution, sound, and handling. Once approved, we proceed with material procurement and production in the quantity you require.
Supply Chain Management
Stocking critical components, a multi-source strategy, and long-term forecast planning—we ensure that your production runs reliably, even in volatile markets.






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