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Synth by XILS Lab

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Inspired by a Legendary FM Synthesizer

Reinforced by Analog Oscillators and Filters and Sublimated by Chaotic Algorithms.

The Versatility and the Brilliance of the FM Synthesis

8 operators, 2 outputs, 2 banks with independent pitch, easy programming of the FM algorithms, XILS-lab worked hard at sublimating the FM synthesis to a new level.

A clear, brilliant and deep sound with a vibe that can be sourced from the other available Analog or Chaotic oscillators.

The Power and Warmth of the Analog Synthesis

2 continuous waveform oscillators, 2 zero-delay like filters, drawing on the vast experience of XILS-lab.

A Deep, Warm and living sound.

The Organic Life of the Chaotic Algorithms

2 chaotic oscillators and 2 chaotic modulators

Create sounds that you had never thought possible.

The Easy Graphic Interface makes your preset faster to tweak

Advanced parameters, contextual help and global view with easy access to main parameters.

Audio path easily understood through the use of illuminated modules.


Two layers, Four effects, Easy to tweak

  • The layers can be played Single, Double or Split.
  • Two independent Arpeggiators, Playing mode or Unison.
  • Easy access to Vibrato or Tremolo.
  • Four deep and warm effects with independent routing.

All main parameters at a glance

  • One Advanced Panel for tweaking the various modules.
  • FM Algorithm Matrix, always available when needed.
  • Contextual help windows.
  • Global view with active modules illuminated.

FM Synthesis

On each of the two available layers you will find:

  • 8 operators.
  • 2 outputs.
  • The 8 operators are grouped into 2 banks with independent pitch. This typical architecture is useful for creating chorus like FM sounds or punchy stereo presets.

Each operator features:

  • One LFO.
  • One envelope.
  • Wheel and Aftertouch access.
  • Two user define external modulators (to be assigned to any KaoX modulation sources).
  • Keyboard follower 2D pad.
  • Ratio or absolute frequency.
  • Low pass filter.

Analog Synthesis

On each of the two available layers, you will find:

  • 2 continuous waveform analog oscillators.
  • 2 zero-delay like analog filters.
  • 4 envelopes D-ADSR.
  • 4 outputs VCA.
  • For a Deep, Warm and living sound.

The Organic Life of the Chaotic Algorithms

  • 2 chaotic oscillators and 2 chaotic modulators.
  • Create sounds that you had never thought possible.

4 Tracks Sequencer

  • Each track can be assigned to the lower and/or upper layer.
  • Each track can have independent sustain/gating.
  • Each track can be used as a source of modulation.

Preset Manager

  • Single Window integrated Preset Manager: Find the right patch in seconds, manage presets, soundbanks and create your own tags.
  • More than 500 presets created by fantastic sound designers
  • Nori Ubukata, Soundsdivine, Tom Wolfe, Zensound, Mikael Adle, Xenos, Status, Yuli-Yolo and others....

System Requirements


  • Mac OSX 10.9 and later (64-bit only) (Compatible on macOS 11 Big Sur with Rosetta) (M1 Apple Silicon compatibility available soon)
  • VST, Audio Unit, AAX (Native)


  • Windows 7,8 and 10 (32 / 64-bit)
  • VST, AAX (Native)

Please Note:

  • KaoX is protected with iLok (PACE antipiracy system) allowing up to 2 independent locations: iLok 2 & 3 and soft (meaning without any hardware key)
  • KaoX is NOT a standalone application and requires a VST/AU/AAX compatible host DAW to function correctly.

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