This is a listing for the A-130-3 1U from Doepfer, a dual channel VCA for Intellijel 1U format Eurorack cases. Each channel offers its own discrete set of controls, including manual Gain, and CV control over the amp. Adjust the character of the CV with the toggle switch, which allows you to choose between linear, exponential, and muted modes of operation. If you're after a compact VCA to fill the 1U space in your Eurorack system, look no further than the A-130-3 1U from Doepfer.