The VCA-11 is an improved amplifier module compared to the VCA-01.
The initial level knob sets the initial level of the amplifier.
The input overdrive amount knob boosts the initial level amount up to a factor of 4.
The control voltage amount knob applies the CV socket input to the amplitude.
Control voltage input for amplitude modulation.
Anything over 0 db will be soft saturated
-Infinity db to 0 db (0 - 100%)
The initial level is typically set to zero (full counter clockwise knob position) and the amplitude is controlled by a CV signal which is typically an envelope generator.
If a signal goes beyond the threshold of the module, the signal will saturation with a nice smooth curve. Because of the saturation characteristics, there is an overdrive control to boost the input signal.
This amplifier will not produce aliased harmonics when clipping.