Differential Volume Control

The Differential Volume Control PCB is intended for use with a 4-gang ALPS RK271-series, "Blue Velvet" volume pot to form a fully differential (balanced) volume control.

When combined with two Input Selector boards and a Selector Switch the Differential Volume Control forms a fully balanced passive preamp.

Dimensions and weight when fully assembled: 70 × 30 × 30 mm, 50 g.

Technical Documentation

Design Documentation