QuNexus Controller

Keith McMillen Instruments

QuNexus Controller

MIDI/CV Keyboard Controller


Keith McMillen Instruments

QuNexus Controller

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


QuNexus Controller



QuNexus is a powerful, portable MIDI and CV mini keyboard controller. 25 touch-sensitive keys detect finger pressure, velocity, and tilt, giving you unprecedented musical control. Blue and white LEDs illuminate the keys with 16 levels of brightness. QuNexus is compatible with MacOS and Windows, or can be used standalone with MIDI hardware or modular synthesizers via CV/Gate. MIDI Expander required for 5-pin MIDI connection (sold separately).

The software editor for QuNexus is available at https://pearl-electronics-support.com/

Receive a FREE copy of PreSonus Studio One Artist with the purchase of QuNexus, QuNeo, or BopPad.

PreSonus Studio One Artist software is one of the easiest to use DAW applications ever created. The rich sound library will allow you to experience the full expressiveness of your Keith McMillen Instruments controller.

To receive your access key to Studio One Artist, email a copy of your proof of purchase to [email protected]. It is that simple. After we receive and verify your purchase, we will email you an access link and a product key to download the PreSonus software.

Offer effective for purchases made after 11/1/2020 and good for residents of the U.S. only.


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