The Doepfer A-135-2 Quad VCA/VC Mixer is a DC-coupled quad VCA with VC mixer function. 4x DC-coupled VCAs with their own sockets and control elements can be found on a narrow 8HP. The inputs process up to 15V distortion-free and the outputs have a level control; at the sum output the summed signal of all 4x VCAs is generated. Each CV input has its own attenuator, so you never have to modulate with full intensity. The A-135-2 is suitable for both audio and CV signals.

Rear jumpers can be used to make additional adjustments such as group functions, normalizations, etc.