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Dual Phase Distortion VCO


The ‘CIZZLE’ is a dual digital ‘phase distortion’ VCO inspired by the classic Casio ‘CZ’ series synthesizers. It brings the specifics of ‘CZ’ style phase distortion (PD) synthesis into Eurorack with the inclusion of primary and secondary oscillator layering and detuning (with up to 8 voice chord generation), extended morphable PD wave generation algorithms, unique resonance wave generation, plus specific ‘end of chain’ ring modulation and noise modes that are key to the CZ sound.

The voices also feature built in VCAs and various modulation controls and inputs, a cv-able chord mode, tracking ability, triggered mode switching and can be output independently or mixed with stereo widening.

The ‘CIZZLE’ finally brings characteristic CZ style synthesis to Eurorack with a rich palette of sounds from mellow ambient tones, 90s Detroit Techno inspired chords, Reese style basses, and synth tones with unique faux resonance squelch.


  • Dual phase distortion VCO with direct and voltage controlled parameters.
  • Easy, quick and accurate tuning via an encoder control.
  • 9 morphing phase distortion ‘Algorithms’ (Osc A) with direct and CV control.
  • PD Offset ‘Shape’ with direct and CV control.
  • Unique CZ resonance waveform (Osc B) with direct and CV control.
  • Multiple Osc B modes; Rez, Ring Mod, and Noise based on classic CZ synthesis.
  • Mode switchable via direct and trigger control.
  • Optional Osc B frequency tracking of Osc A with offset.
  • Voltage controlled chord mode with inversion and up to 8 voices.
  • Dedicated oscillator output level VCAs.
  • Separate dual or mixed outputs with stereo widening effect.
  • Skiff friendly with reverse power protection.
  • 2 Year Warranty.
  • Made in England.

Ideal For:

  • Flexible and precise primary digital voice duties in a Eurorack system.
  • Creating basslines, rich chords, drones, morphing tones, percussive hits etc.
  • Unique digital squelch.

Technical Specifications

  • Supply: +12V 65mA / -12V 25mA
  •  Size: 16HP
  •  Depth: 32mm

VCV Version

Also available is a fully featured emulation of the CIZZLE for ‘VCV Rack’ virtual Eurorack studio software platform. It has the exact same sound generation engine and features as its hardware counterpart.

It can be purchased from the VCV Rack store here.

Watch & Learn

Introducing CIZZLE

Satoshi & Makoto Meet CIZZLE

We invited artists Satoshi & Makoto, renowned Casio CZ synthesists, to the Clockface modular shop and studio to try out the CIZZLE module.

Cizzle pairs well with the ASQ-1, Quaid Megaslope, and MFX.

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