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Black K-Phaser

Our take on a classical, genre defining FX unit – the Krautrock Phaser is now available!

Erica Synths Black K-Phaser retains the original concept of 8 all-pass filters with photoresistors, but we redesigned the filters and modulation circuit and added several unique features. A dip switch allows for selecting the number of filter stages involved in the resonance path, while the resonance attenuverter brings in never-heard-before feedback artefacts, and most importantly – the SPREAD mode detunes the all-pass filters for even more distinct behaviour. A built-in voltage controlled LFO with selectable waveforms expands the modulation possibilities of the phaser and can be used as an independent modulation source for your modular system as well.

The Black K-Phaser is our tribute to the German electronic music pioneers that largely shaped the sound of electronic music worldwide.


  • 8 all-pass filters with photo-resistor control
  • Classic and Spread (filter detune) mode
  • Resonance attenuverter
  • Selectable resonance path
  • Built in VC LFO with a dedicated output
  • Wet output


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