KaoX synth plugin interface by XILS Lab showing FM operator matrix

KaoX: FM, Analog and Chaotic Synth Plugin by XILS Lab Free Download

Rated 5.0/5 on Plugin Boutique (13 ratings)

KaoX is a synth plugin by XILS Lab that combines 8-operator FM synthesis with analog oscillators, zero-delay-style filters and chaotic algorithms. It runs as a VST2, AU or AAX plugin inside a compatible host DAW.

VST2AUAAXStandaloneWindowsmacOS64-bit
AVAILABLE ATPlugin Boutique
Free trial available from the developer
01Overview

KaoX is built around FM synthesis, with two layers that each contain eight operators grouped into two banks with independent pitch. Alongside the FM engine, each layer adds two analog oscillators, two filters and two chaotic oscillators with two chaotic modulators. The developer describes the result as a clear, deep sound that can draw on the other oscillator types. The interface shows the audio path through illuminated modules, and an integrated preset manager lets you search and tag patches.

Best for

  • FM bass and lead sounds
  • Chorus-like FM pads
  • Experimental chaotic textures
  • Punchy stereo synth patches
  • Preset-based sound design
Developer
XILS Lab
Category
Synths
Store
Plugin Boutique
02Key features

What you get

  • Two layers playable single, double or split
  • 8-operator FM engine across two banks with independent pitch
  • Two analog oscillators and two filters per layer
  • Two chaotic oscillators and two chaotic modulators
  • Four 4-envelope D-ADSR and VCA outputs per layer
  • Four-track sequencer with independent sustain or gating
  • Two independent arpeggiators with playing-mode or unison
  • Integrated preset manager with user tags and over 500 presets
03In depth

Layers, Effects and Sound Architecture

KaoX offers two layers that can be played single, double or split. Each layer can run its own arpeggiator, with playing-mode or unison options, and there is easy access to vibrato and tremolo.

Four effects sit in the signal chain with independent routing, which lets you shape each layer separately. The global view highlights active modules so you can see the signal path at a glance, and contextual help windows explain the parameters as you work.

The four-track sequencer can be assigned to the lower and/or upper layer, with independent sustain or gating per track. Each track can also act as a modulation source.

FM Programming and Preset Library

Each FM operator has its own LFO, envelope, wheel and aftertouch access, two user-defined external modulators and a keyboard follower 2D pad. Operators can use ratio or absolute frequency, and each includes a low-pass filter.

The bank structure is useful for chorus-like FM sounds or punchy stereo presets. A dedicated FM algorithm matrix is always available when you need to rework the routing.

The single-window preset manager lets you find patches, manage presets and soundbanks, and create your own tags. The library includes more than 500 presets, and the developer credits sound designers including Nori Ubukata, Soundsdivine, Tom Wolfe, Zensound, Mikael Adle, Xenos, Status and Yuli-Yolo.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

DeveloperXILS Lab
TypePlugin
CategorySynth
FormatsVST2, AU, AAX, Standalone
Operating systemsWindows, macOS
Architecture64-bit
Free trialYes
05FAQ

Questions, answered

What formats does KaoX come in?

KaoX is available as VST2, AU, AAX and Standalone versions. It runs on Windows and macOS and is a 64-bit plugin.

What do I need to use KaoX?

KaoX is not a standalone application for regular use and requires a VST, AU or AAX compatible host DAW to function. It is protected with iLok (PACE) and can be authorized on up to two locations, including iLok 2 and 3 hardware or soft licensing without a hardware key.

Which operating systems are supported?

macOS 10.9 and later is supported, with compatibility on macOS 11 Big Sur through Rosetta. Windows 7, 8 and 10 in 32- and 64-bit are also supported for the VST and AAX versions.

Is there a trial version?

Yes, KaoX offers a trial version.

07Developer

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