Frequency CentralSystem X Filter


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Frequency Central System X Filter

The Frequency Central System X filter is essentially a clone of the Roland System 100 VCF, albeit optimized for the Eurorack format. It makes use of 4 ca3080s and features an extra 12dB/Oct output that is 180 degrees out of phase with the 24dB/Oct out. This means users can mix the two outputs together for bandpass operation.

System X Filter Features

  • 2 Audio Inputs w/ Controls
  • 12 dB/Oct Out
  • 24 dB/Oct Out
  • 2 CV Inputs
  • Cutoff Control
  • Resonance Control


  • Eurorack Module
  • 10 HP Width
  • 65mm Depth
  • +12v: 10mA current draw
  • -12v: 10mA current draw
Frequency Central System X Filter Reviews