XILS Lab PolyKB III & II
Synthesizer Virtual Instrument
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.
Features
- 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
Instant Delivery
Products with the Instant Delivery badge are in stock, and can be delivered to your email in seconds after you purchase.

Education Proof
Products with education pricing are for students & teachers only. To prove your education status we require that you upload proof in the form of an image/PDF.
Types of proof
StudentStudent ID Card, Letter of enrollment, or similar
Teacher/LecturerTeacher ID Card, Lecturer ID Card, Payslip, Letter from the school/college
Education proof is submitted to the manufacturer and is accepted at their discretion.
Digital Download Info
Digital Products are delivered electronically via Email. No physical product will be shipped to you!
In most cases, the product you purchase from us is a serial number/license code/activation code to register the product with the manufacturer and download directly from them. This ensures you receive the latest version of products, and the best support when neccessary.
The email you receive from us after purchase will contain the license code and a link to our Install Instructions page. You can visit that page by clicking here: Install Instructions.
Crossgrade Proof
This crossgrade is for owners of a competing DAW. To prove your DAW ownership, we require that you upload proof in the form of an image/PDF.
Types of proof
A copy of your purchase receipt for the original license or the most recent update/upgrade
A screenshot of your product registration
A photo of your package (either CD/DVD or printed manual), with the unique serial number included in the photo.
Get a free upgrade to RX10
This offer is valid until RX10's release.
Eligible Products
Purchase one of the following products:
- RX9 Standard
- RX9 Standard - Crossgrade from any paid iZotope product
- RX9 Standard - Upgrade from any RX Standard, Advanced, or Post Production Suite
- RX9 Standard - Upgrade from RX Elements/Plugin Pack
- RX9 Advanced
- RX9 Advanced - Crossgrade from any paid iZotope product
- RX9 Advanced - Upgrade from RX Advanced 1-8, or Post Production Suite 1-5
- RX9 Advanced - Upgrade from RX Standard 1-8
- RX9 Advanced - Upgrade from RX Elements/Plugin Pack
- RX Post Production Suite 6
- RX Post Production Suite 6 - Upgrade from RX Post Production Suite 1-5
- RX Post Production Suite 6 - Upgrade from RX Advanced 1-8
- RX Post Production Suite 6 - Upgrade from RX Standard 1-8
- RX Post Production Suite 6 - Upgrade from RX Post Production Suite 1-8
Exclusions
Only the upgrades and crossgrades specified above are eligible. All others listed apply to the full version of the product only. Education versions are not eligible.