Doepfer A-132-1 Dual VCA

Module A-132-1 (Dual Low Cost VCA) contains two voltage controlled amplifiers, with a linear response most suited to regulating the level of control voltages (ADSR amount, level of vibrato effect, etc.).
In non-critical situations, though, its VCAs can be used to control audio signals.
Amplification is governed by the sum of the voltages patched into the two CV inputs.

For more detailed information please look at the English user's guide: A132_man.pdf

Remark 1: The A-132-1 is able to process even slowly varying control voltages (DC coupled in/outputs).

Remark 2:
Since June 2013 the A-132-1 is equipped with SSM2164/V2164 (instead of two CA3080). Unfortunately it's not possible to upgrade older modules because the new circuitry is totally different.