Whirl barber-pole phaser

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Whirl is a barber-pole phaser plugin for KORG prologue, minilogue xd and NTS-1. It is based on the Bode frequency shifter algorithm configured with a positive feedback loop, which allows it to produce an audible illusion of endlessly morphing resonant spectrum sweeps. These sweeps are going “upwards” with negative phaser frequencies, or “downwards” with positive frequencies, and it’s possible to seamlessly transition between these states.



  • Studio-grade DSP algorithms, calibrated specifically for KORG’s hardware platform.
  • Individually chosen mapping for every plugin parameter, providing a very natural feel.
  • Built-in lag filters for noise-free, ultra-smooth parameter adjustment.
  • Optimized for maximum performance and stability on each individual device type.


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

Listen to audio examples