Erica Synths - Black Polivoks VCF


Very authentic emulation of the voltage controlled low-/bandpass filter from the russian Formanta Polivoks synthesizer. Although the circuitry was adapted to modern modular systems and the low-end's behaviour was enhanced, the module's heart still are the original intedrated circuits K140UD12 responsible for the filter's special sound with it's wicked resonance.



The Black Polivoks Filter has two modes: a -6dB/octave steep band pass and a -12dB/octave lowpass, between which you can select with a click-less switch. Soundwise we'd call this filter "wet" and very specific. It has resonance wich starts oscillation at maximal fully clockwise position. The oscillation is pretty unstable which is charming.
The Polivoks' trademark sound of course depends on the input level, for which reason you have a level control.

There are two voltage control inputs for modulating the cutoff frequency. They are buffered to eliminate interference between them.


Ericas Black Series is a line of high-quality modules forming one entire system. They are buit with quality components; all inputs and outputs are protected against overvoltage; the module is protected against reversed polarity. All important parameters have large controls.
Design and usability were put before economic width.


audio: input and audio output
two cutoff CV inputs


3U Eurorack module, 12HP wide, 25mm deep
power consumption: 11mA @ +12V and 11mA @ -12V

0.22 kg
Article Number
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former retail price: €159.66

This item is discontinued or sold out and no longer available, please feel free to look for comparable new stuff in the following categories.


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