QuNexus Controller

Keith McMillen Instruments

QuNexus Controller


Keith McMillen Instruments

QuNexus Controller

QuNexus is a vividly illuminated keyboard controller that is both fun for beginners and a must have for professionals. 25 touch-sensitive keys detect finger pressure, velocity, and tilt, giving you unprecedented musical control. Blue and white LED illumination with 16 levels of brightness give the user valuable feedback. Use the toggle/hold mode to create your own step sequencer or arpeggiator with LED feedback.


QuNexus is the first keyboard controller to unite four generations of synthesis control: MIDI, Control Voltage, OSC and USB. MIDI Expander required for 5-pin MIDI connection (sold separately).


The software editor for QuNexus is available at https://pearldrum.com/eu/support/firmware


QuNexus Controller



A super compact, extremely durable, versatile and highly programmable 25 note keyboard controller designed to be deeply expressive and connect through USB, CD Gate and 5-Pin MIDI.

Smart Fabric Sensor Used on 25 Keys to Detect Pressure, Velocity, and Tilt with Polyphonic Aftertouch.

2 CV/Gate Inputs.

Gate and 3 CV Outputs (16-bit).

Channel Rotation & Poly Pitch Bend.

Plug and Play: Mac OS, Windows, iOS, Android, Linux.

USB Powered.

No Drivers Needed.

Extremely Durable Design

Tested to Survive Spills and Even Being Run Over By a Car.


Get started

Manual (pdf)
QuNexus Quickstart Guide (pdf)
Technical specifications (pdf)


We’ve created specific user manuals to help you with the editor, CV integration, and Live Edit mode here:

QuNexus Editor Manual (pdf)
QuNexus CV Manual (pdf)
QuNexus Live Edit Mode Manual (pdf)


Minimum System Requirements

・For Mac: Intel Core 2 Duo 2.3GHz or greater; Mac OS 10.5 through 10.10; 50 MB free hard disk space
・For Windows: Windows XP or Windows 7; Intel Core 2 processor or greater; 1 GB of RAM; 50 MB free hard disk space



・QuNexus Editor: Mac OS X, Windows XP, Windows 7
QuNexus OSC Bridge
QuNexus Ableton Live Sets
・Ableton Live Remote Script Installers: Mac OSX, Windows