SVF 4-pole state variable filter

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SVF is a state-variable filter plugin for KORG prologue, minilogue xd and NTS-1. It is based on 4-pole design that gives a steep -24 dB/octave frequency slope, and includes three separate plugin versions: with low-pass (LP), high-pass (HP) and band-pass (BP) filter types. In all versions, the filters can be highly resonant, so adjusting the resonance beyond 50% should be done with caution.



  • Studio-grade DSP algorithms, calibrated specifically for Korg’s hardware platform.
  • Individually chosen mapping on each parameter providing a very natural feel.
  • Built-in lag filters for noise-free, ultra-smooth parameter adjustment.


  • Korg prologue
  • Korg minilogue xd
  • Korg Nu:Tekt NTS-1

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