FBCA

The audio feedback compensation amplifier governs and conditions the electrical signals that drive the CH9 cutting head. Designed for absolute precision, it ensures that every modulation of the groove accurately mirrors the original sound source.

A dedicated feedback coil system within the CH9, combined with carefully engineered compensation circuitry and RIAA pre-emphasis, optimizes the cutting behavior across the entire frequency spectrum — subtly reducing low-frequency amplitude and enhancing high-frequency response to achieve ideal groove geometry.

The result is a perfectly balanced cut, maintaining clarity, depth, and dynamics while preserving the integrity of the recording.

Seamlessly integrated with the FP9 architecture, the preamplifier system forms a vital link between electronic precision and mechanical performance — ensuring that what you hear is exactly what you cut.