Erica Synths Black Multimode VCF is a filter module for Eurorack modular synthesizers. It provides simultaneous high-pass, bandpass, and low-pass filter outputs, as well as CV control of cutoff frequency and resonance. As a further bonus feature Black Multimode VCF offers a germanium diode distortion at the filter input. The stable core of the circuit is based on a custom multimode VCF chip called AS3320.
Erica Synths Black Multimode VCF at a glance:
Simultaneously tapable HP, BP and LP outputs
Control of cutoff and resonance via control voltage