Available as an assembled Module and as a DIY project.
This Module is currently available.
MG ID: 40755
A precision utility module featuring a voltage-controlled linear crossfader and active processor for audio and CV. Smoothly blend between two signals while creating inverted and offset control voltages.
The LGE201 Active Processor (ACPR) is a precision analog signal processor that combines a voltage-controlled linear crossfader with an active scaling and inversion stage. Designed for both control voltages and audio signals, it provides smooth, accurate signal blending and flexible voltage processing, making it an invaluable utility in any modular synthesizer system.
These merchants probably sell this module. Huh?