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

Round Wire

Round wire coils are the tried and tested standard design: A solid conductor is formed into a winding and provides an easily calculable inductance. In terms of sound, DC resistance (R_DC) is decisive here because it directly influences efficiency and control — especially in the bass range.

Ferrite HP3616

HP3616 is our precision material for low-signal applications: fast, clean and very compact. Particularly in correction links, equalizers and selected midrange tasks, he shows his strength in clarity and definition.

The design is decisive for high currents in the bass, as the magnetization reserves are limited.