Doepfer A-141-4, Eurorack Module, Quad poly VCADSR, 4-Channel envelope generator for polyphonic applications, 4 Separately triggerable ADSR envelopes, xpotential waveform, Common regulation of the parameters, All parameters CV controllable with own attenuator, Voltage range: 0 to +10 V, Attack, Decay, Release times: about 1 ms - 30 s, Inputs for CV A-D and Gate 1-4, 4 x Output, 4 x Control LED, Power requirement: 70 mA (+12 V) / 60 mA (-12 V), Width: 8 HP, Depth: 45 mm