The Gain/Saturation potentiometer determines the level and at the same time the saturation and distortion behaviour, but it is also dependent of the voltages which are applied to the VCA-CV input and/or generated by the OFFSET control.
The latter generates an offset voltage from 0V to +10V which "opens" the VCA and which allows for modulations with bi-polar CVs. At +5V, i.e. in the potentiometer's center position the signal passes the VCA with "unity gain" (as long as Gain/Saturation are at zero). Beyond the center point the signal is being amplified, up to factor 2.
The CV-Response parameter is used for adjusting the VCA's characteristic, or in better words: how the module reacts to the VCA-CV. You can blend it manually from linear to exponential and there's even a CV input for this function!
The VCA-CV which has been processed by the Response parameter is available at the CV OUT socket for further use, i.e. to modulate a filter cutoff.
Signal input, signal output
VCA CV input, response CV input, CV output
3U Eurorack module, 6HP wide, 25mm deep
power consumption: 20mA @ +12V and 20mA @ -12V