Keith McMillen QuNexus RED MPE MIDI-CV Mini Keyboard Controller w/ Cable Kit - Fresh Stock Dated February 2026

Description

Keith McMillen QuNexus RED MPE MIDI-CV Mini Keyboard Controller w/ Cable Kit
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Manufacturer's Description
Keith McMillen Instruments QuNexus RED MPE MIDI-CV Mini Keyboard Controller
QuNexus is a powerful MPE keyboard controller and three track arpeggiator/step sequencer. Its 25 touch-sensitive keys detect velocity, polyphonic aftertouch, and per-key tilt, giving you unprecedented control and musical expression. Each of the three arpeggiator/sequencer tracks can be programmed with up to 32 steps, 10 selectable arpeggiator patterns, and can be independently assigned to USB, MIDI, and Eurorack outputs. Blue and white LEDs illuminate the keys during arpeggiations, step sequences, and playback.
QuNexus can control MIDI hardware using the included MIDI Out cable or our optional MIDI Expander (sold separately). You can connect to modular synthesizers via the gate, three CV outputs, and two CV inputs, all of which can be assigned using the QuNexus editor which is compatible with Windows and MacOS.
Features
Sequencer
A three track step sequencer and arpeggiator to create, jam, and compose music on the fly with.
Connected
QuNexus connects to USB, MIDI, and Eurorack devices. And with three assignable tracks, you can quickly switch between multiple devices.
25 Key MPE Keyboard Controller
Touch-sensitive keys detect velocity, polyphonic aftertouch, and per-key tilt
New key and pitch bend algorithm based on our K-Board Pro 4 gives superior playing and expression
User selectable and customizable velocity/expression curves and per-key sensitivity adjustment
Three Track Sequencer and Arpeggiator
Track are switchable between arpeggiator or step sequencer mode
Up to 32 quantized steps per pattern, 8 pattern slots to save and recall patterns
Playback divisions from whole notes to 32nd notes, dotted or triplets, 5-255bpm
Arpeggiator supports 10 playback modes, including pendulum, random, and brownian motion
Each track is independently assignable to MIDI channels, USB/DIN and CV outputs
Track 1 supports MPE playback with each key transmitting aftertouch and tilt
Connectivity
USB MIDI with three ports (keyboard, expander, and CV)
MIDI DIN out using the included KMI MIDI Out Adapter Cable
MIDI DIN in and out using the optional KMI MIDI Expander (sold separately)
1 Gate output, 3 CV output, and 2 CV inputs (using 1/8″ stereo trs connectors)
Control Layer and Programming
Separate control layer lets you map each key to its own notes and/or CCs
Standalone editing and saving of most common parameters
Advanced configuration using the QuNexus Editor
Compatible with MacOS and Windows
Keith McMillen QuNexus Accessory Cable Kit Keith McMillen QuNexus CV Cable Kit
The QuNexus CV Cable Kit is an optional add on, which makes it easy to gather the cables and adapters needed to convert MIDI to CV and vice versa using QuNexus. One of each of the following cables/adapters is included in the CV Cable Kit: right angle 3.5mm (1/8in) stereo plug to 1/4in stereo jack 3.5mm (1/8in) stereo plug to 1/4in mono jack 3.5mm (1/8in) TRRS plug to dual 3.5mm (1/8in) stereo jacks 3.5mm (1/8in) stereo plug to dual 3.5mm (1/8in) mono plugs 3.5mm (1/8in) stereo plug to dual 3.5mm (1/8in) mono plugs
Specifications
Keith McMillen Instruments QuNexus RED MPE MIDI-CV Mini Keyboard Controller
Controllers
Keyboard: 25 LED backlit keys with pressure and tilt sensitivity
Pitch bend pad
Octave up/down buttons
5 function buttons
Dimensions
325mm x 84mm x 11mm
2.8in x 3.3in x 0.43in
Weight
345g
0.76lbs
Connections
Micro-USB
Mini-USB
3 3.5mm TRS connectors (stereo)
Power Source
USB bus power
USB power supply (not included)
Power Consumption: ~150mA max draw @ 5V
Included Accessories: Micro-USB cable (1m, USB 2.0)
Octave Shift Range: -2 to +3 octaves
Velocity Curves
Linear
Logarithmic
Sine
Cosine
Exponential
Inverted
2 Customizable User Curves
Data Transmitted
Class-compliant MIDI over USB
MIDI over 5-pin DIN (via KMI Expander)
Control Voltage
Control Voltage Range
Outputs: 0V – 5.2V
Inputs: 0V – 5.0V
CV Pitch Output Modes
1V per octave
1.2V per octave
Hz per Volt
System Requirements (Mac) (Software Editor)
Mac OS 10.5 or later
Intel Core 2 Duo processor or greater
50MB free hard disk space
System Requirements (Windows) (Software Editor)
Windows 7 or greater
Intel Core 2 Duo processor or greater
50MB free hard disk space
One of each of the following cables/adapters is included in the CV Cable Kit:
right angle 3.5mm (1/8in) stereo plug to 1/4in stereo jack
3.5mm (1/8in) stereo plug to 1/4in mono jack
3.5mm (1/8in) TRRS plug to dual 3.5mm (1/8in) stereo jacks
3.5mm (1/8in) stereo plug to dual 3.5mm (1/8in) mono plugs
3.5mm (1/8in) stereo plug to dual 3.5mm (1/8in) mono plugs