Doepfer A-132-4 Quad exponential VCA / Mixer.
Four exponential VCAs on the most compact room. The VCAs don´t have attenuators at the signal inputs but they can handle also very loud signals of 16Vpp amplitude (-8V to 8V) without distorting.
The four VCAs can be cascaded so the very last output carries the sum of all 4 VCAs.
per VCA: 1x signal input, 1x signal output, 2x CV input
3U Eurorack module, 6HP wide, 60 mm deep. Current draw 30mA.