Pole-Zero is a low-pass filter with the characteristics of 4 Pole (24 dB / Oct). Similar to a vacuum tube using a MOSFET transistorSoft distortionIs obtained by overdrive. You can also control the amount of distortion with the Saturation control knob. This gives you a very wide range of sound palettes.With VCASo it's a simple synthesizer with only an oscillator and this module.
When the resonance is raised, it self-oscillates, and the frequency can be controlled by 1V / Oct input other than FM.