Root Locus

Root Locus is an analog 12dB/octave multimode filter, based on the CGS512 VCFQ filter. It adds a dual input crossfading mixer with gain control and a variable mode output with cv control for sweeps between filter modes, aiming for an extensive tonal variety! It also features a Ping input that allows for an impressively wide variety of percussive sounds. The sub range switch makes it a very versatile CV filter too, able to filter control voltages as well as transforming it to an interesting quadrature LFO while in self oscillation.

177.00  (Excl.VAT)


  • Two input crossfading mixer with CV control
  • Voltage controlled Mode out for smooth sweeps between filter modes
  • Individual filter outputs for low pass, band pass, notch and high pass filters
  • Frequency CV input with attenuverter and additional V/oct input
  • Voltage Controlled Q
  • Ping input for striking the filter
  • Sub range switch for filtering control voltages and quadrature LFO operation

Tech specs:

  • 12hp
  • Depth: 30mm, Skiff Friendly!
  • Power: 47mA @+12V/48mA @-12V
  • Reverse polarity protected
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