| The VCA (Voltage Controlled Amplifier) module is a classic amplifier to control audio- and CV-signals.
MFB-VCA offers three inputs, of which input 1 can be continuously attenuated. Inputs 2 and 3 offer no attenuators but different sensitivities. They are intended as alternatives for different signal sources rather than to be mixed.
Both CV-inputs can be adjusted in amplification. An envelope generator will typically control CV-1. A distinctive feature for CV-input 2 is its dependency to CV-input 1. Only if voltage is applied to CV-1, any CV-2 control becomes active. A typical application would be a dynamic tremolo effect: With CV-1 under envelope control and CV-2 under LFO control, the tremolo will only be audible with a note held. Typical parallel CV-inputs found in other modules would need a second VCA-module to achieve this effect.
There are two parallel outputs: Output 1 has fixed level and output 2 offers variable attenuation.
The module has a width of 40 mm (8 TE).
> tech specs
* 2 dependent CV-inputs
* logarithmic characteristic
* 3 audio-inputs, 2 outputs