Quad is a fully analog four channel crossfader, scanner and four channel VCA. At audio rates it works as a wave shaper, while combining audio rate signals and control voltage signals creates additive synth tones. With DC coupled inputs, it is capable of crossfading between control voltages. All of the functions work in stereo or mono for unique crossfading effects and complex stereo crossmodulations.

4-channel crossfader / scanner

4 channel VCA 100% analog, audio rate wave shaping

Additive synth generator Stereo or mono outputs 

DC coupled inputs Mixer, panner Voltage controlled channel selector

Basic voltage controlled mixer

Controls for amount of cross fade (spread)

Control for how long each channel stays on (depth)