Behringer 110 VCO/VCF/VCA Module for Eurorack (16 HP) Complete Synth Voice w/ Internal Patch, Reproduction of System 100M Circuitry, VCO Waveforms: Tri, Ramp, Square (PWM), VCF with Cutoff and Resonance, VCF has 2 Audio Inputs and 2 CV Inputs, VCA with...