Erica Synths
Black Polivoks VCF Filter - 10HP

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Item: N13-4257

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Black Polivoks VCF Filter - 10HP


The Erica Synths ‘Black Polivoks VCF’ module is one of the most authentic sounding emulations of the famous Russian synth, the Formanta Radio Factory Polivoks. The original Russian ICs K140UD12 are used in the sound circuit. Erica Synths did several updates to adapt the VCF for contemporary modular synth demands. Independently buffered inputs, extended Cutoff knob, eliminated clicks, when switching filter modes, and output stage added to eliminate signal inversion. The result is a much punchier bass sound and very smooth controls.

The Erica Synths Black Series features high-end modules with unique functionality. Only the highest quality components are used and all inputs and outputs are protected against undesired over-voltage. When designing the Black Series, Erica Synths did not economize on the module width, they put design and usability first. Big knobs are assigned to functions that make differences in sound. The Erica Synths Black Series are a range of modules that together make an entire synthesizer! 


  • Polivoks VCF Emulator Filter Module
  • Frequency Cutoff Control
  • Filter Mode Switch – Switch between Low Pass and Band Pass Filter Modes
  • Resonance Control – Goes up to crazy resonance and self oscillation
  • CV1 and CV2 Inputs
  • CV1 and CV2 Input Level Controls
  • Signal Input
  • Signal Input Level Control
  • Audio Output

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  • Eurorack Module
  • 10 HP Width
  • 25mm Depth
  • Current Draw: 11mA @ ±12V

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