Polivoks VCF is famous for its’ crazy resonance sweeps and deep, bassy sounds that make it ideal for acid basslines.
Features
Switchable BP/LP modes
Inputs/outputs are protected against over-voltage
Protection on reversed power supply
Skiff friendly design
We believe that this is one of the most authentic sounding emulations of the famous Russian synth Polivoks VCF that are available out there. The original Russian ICs K140UD12 are used in the sound circuit, but we also did several updates to adapt the VCF for contemporary modular synth demands. Independently buffered inputs, extended Cutoff knob range, eliminated clicks, when switching filter modes, and output stage added to eliminate signal inversion. 
Technical specifications:
Input level
up to 20Vptp
CV input level
-10V - +10V
Filter modes
BP(6dB/oct)/LP(12dB/oct)
Module width
10HP
Module depth
30mm
Power consumption 
11mA@+12V, 11mA@-12V