A clone module of Polivoks filter with a very attractive rough and thick sound quality. With the characteristics of 2Pole (12db / Oct), resonance is controlled by a knob, and when it is turned greatly to the right, unstable self-oscillation occurs.There are bandpass and lowpass outputs.There are two FM inputs that modulate the cutoff frequency with CV, with and without an atte inverter, and the two signal inputs have gain control.MixedAvailable