Analog multifunctional voltage-controlled filter, based on SVR (State Variable Filter) technology. It has four filters with individual outputs: low pass, band pass, high frequency (high pass) and a notch filter.
Notch filter can have the characteristic of a low pass filter, a band pass filter, and a high pass filter. Its state is controlled with the appropriate knob.
For the module, frequency and resonance adjustments are available, these parameters can also be controlled externally via CV signals.
Two switches (gain, mode) enrich the module with very specific capabilities. When the gain is set to "Q", the resonance control acts as usual, and at "1" the filter turns into a VCA. Toggle mode allows you to enter the module into self-generation when switching to the "Q" position.
At high resonance values, the module begins to distort the input signal the way the vintage resonant filters do.