Synthesizer Virtual Instrument

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  • Regular price $159.00 69% off
  • $49.00
    Digital Product - Delivered via Email.
    More Info
Apple Silicon Compatible
AAX Native - Compatible with Pro Tools 11 and above
AudioUnits Format VST2 Format VST3 Format
Free iLok account required, USB dongle optional
iLok Dongle Required
MacOS Logo
Windows Logo

PolyKB III captures the sound and spirit of the legendary RSF PolyKobol 2 polyphonic synthesiser, including its most revolutionary feature: Morphing analog oscillators.

This sets it apart from all the other common analog synth recreations.

You have instant access to hundreds of different analog modeled & free running oscillator waveforms, and they can be dynamically modulated by many sources.

Two gorgeous, creamy multimode filters, self-resonating in all modes, and Xils exclusive 0df technology.

In addition, you get two gorgeous, creamy multi-mode filters, self-resonating in all modes, and Xils exclusive '0df' technology.

There are also three Analog modeled envelopes, with time multiplication, and great looping capabilities.

Two complex LFOs are available with MIDI sync capabilities.

All working to deliver a fat, warm and immediately inspiring analog sound.


  • 3 Morphing oscillators
  • 2 Creamy Multimode 0df Filters
  • 3 Envelopes, 2 LFOS
  • Polysequencer, arpeggiator, vintage effets
  • Unmatched analog presence and feeling
  • Tomorrow's technology: Hundreds of modulation, including 2 Unique Per voice modulators, a supersized step sequencer, and two Mod Matrixes

Per Voice

It wouldn't be an XILS-lab instrument if it didn't have innovative and exclusive features like each voice having its own modulation engine, or a giant Step Modulator, to propel it into the 21st century.

Make Each Note Different

The Voice XY module is a single Note Quad XY modifier playground.

You have total control over the creation of subtle or wild variations for each note in a 2D square with 4 different parameters.

Create Your Own 3D Space

With the Space XY module, you can place each note in a three-dimensional space, and build stereo-scapes that no other effect can achieve.

On top of that, you can make it move with the inbuilt chaotic functions, adding incredible life to your sounds.

You have never had so much artistic control over the stereo field.

If you combine these two Single Note modifiers with the True Unison engine, you’ll soon get amazing, dense, and breath-taking sounds, that will proudly take their place in a mix immediately.

Operating it is easy, you simply place and move control points of the voices, in the square.

Hyper Modulations

The Polysequencer can now be used as a 128 steps, 4 lines/16 destinations giant Step Sequencer Modulator, allowing you to sculpt not only the most detailed TranceGate patterns, but also Slides or incredible rhythmic patterns.

Everything is here to allow you to create fully organic and expressive presets.

PolyKB III is the ultimate blending of analog authenticity and powerful modern technology.

System Requirements

  • MacOS 10.9 Mavericks and above
  • Windows 7 and above (32 and 64-bit)
  • Intel, AMD, or Apple Silicon CPU
  • Free iLok account and iLok License Manager
  • iLok Machine and iLok USB licensing methods are supported

Plugin Formats

AAX Native, AU, VST2, and VST3

User Manual