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Keith McMillen Instruments QuNexus Quick Start Manual

Keyboard controller
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Download this manual See also: Reference Manual, User Manual
QuNexus Version 1.0
May, 2013
QuNexus is a vividly illuminated keyboard controller that is fun for beginners and a must for
professionals. It is a hub for new and vintage technology. Plug into your computer, iPad (Apple
Camera Connector required), or Android tablet via USB. Control hardware via 5-PIN MIDI (MIDI
Expander required) or control your modular synthesizers with the included CV inputs and
outputs.
QuNexus is a class compliant USB device that does not require a driver or software to function.
Out of the box QuNexus has everything needed to get started. This document is a quick guide
to getting started using QuNexus out of the box.
USB
Connect QuNexus to a computer:
This image shows QuNexus set up to send
MIDI data to a computer. Use a USB A-to-Micro
cable to connect the QuNexus micro port to a
USB port on a computer. QuNexus will receive
power from the computer.
Connect QuNexus to an iPad:
The image shows QuNexus connected to an
iPad via USB. You will need the iPad Camera
Connection Kit (sold by Apple:
store.apple.com/us/product/MC531ZM/A).
Attach the camera connector to the iPad and
then use a USB A-to-Micro cable to connect the
QuNexus micro port to the camera connector.
QuNexus QuickStart Guide
http://
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Summary of Contents for Keith McMillen Instruments QuNexus

  • Page 1 Expander required) or control your modular synthesizers with the included CV inputs and outputs. QuNexus is a class compliant USB device that does not require a driver or software to function. Out of the box QuNexus has everything needed to get started. This document is a quick guide to getting started using QuNexus out of the box.
  • Page 2 QuNexus has 3 virtual MIDI ports that communicate with the computer. Port 1 is the main port on which the QuNexus sends and receives MIDI data to and from the computer or iPad. Port 2 and 3 can be used for this purpose as well but are also used for communication with other devices.
  • Page 3 MIDI Expander can be used with or without a computer or iPad connected. Power is supplied to QuNexus from the MIDI Expander’s power port when the MIDI Expander is plugged into a power outlet. If connected to a computer (or iPad) and a MIDI Expander, power is supplied to the QuNexus from the Micro USB port instead of the Expander.
  • Page 4 Connect QuNexus to Synthesizers or other CV devices: The images to the right below show QuNexus connected to a CV device. There are 3 different ways to set this up: Powered by a Computer (or iPad): 1. Use a USB A-to Micro cable to connect the QuNexus Micro port to a USB port on a computer or iPad.
  • Page 5 Using adapters if needed, make sure one end can plug into one of the stereo 1/8in CV out ports on the left side of QuNexus. QuNexus’ CV input port (on the right side) requires one end to be a 3.5 mm TRRS (like the ones used for Apple iPhone headsets).
  • Page 6 Yamaha Pedals are known to misbehave because they don’t function as a voltage divider. We recommend the Roland EV-5. For even more information about CV cables for QuNexus consult the QuNexus CV Manual. CV to MIDI Data Conversions Output: By default, QuNexus sends different data out...
  • Page 7 There are 2 triangular Oct buttons that increment or decrement the keyboard octave (Keyboard Layer only). When QuNexus is first plugged in the - and + Oct buttons are both lit up and the keyboard starts at C2 (note 48) and goes up to C4 (note 72). QuNexus treats C3 as note 60.

  • Page 8: Selecting Presets

    There are four Preset slots on QuNexus. To select different presets tap the Shift / Preset button on the left side of the QuNexus. The LEDs on the keyboard will swipe to indicate that you are in Preset Select Mode. Then one of the four lettered buttons will light up to indicate which Preset is currently selected (A, B, C, or D).
  • Page 9 Tap the Togl A button on the left side of the QuNexus to clear a note without having to hit the next one.
  • Page 10 Key Velocity (for notes only): The value between 0 and 127 that represents the overall pressure on the QuNexus keys at the moment a note on (or finger on) is detected. Pressure: Continuous values (between 0 and 127) represent the applied pressure of your finger on the QuNexus keys.
  • Page 11 Being aware of the data sources that the QuNexus provides will help in understanding how QuNexus uses this data and how it is converted to MIDI and CV. The next chapter will let you know how the sources are used for each Factory Preset that comes on the QuNexus.
  • Page 12 ● Controller Layer Pressures and Tilts are active for all Keys. ● Control Voltage (CV) output and input are enabled with pitch, gate, bend, and pressure all being sent out of the CV outputs. These four presets can be customized using the QuNexus Editor.

  • Page 13: Controlling Leds

    QuNexus Editor The QuNexus Editor is a free application that we provide on our website. It allows you to create customized Presets and load them onto QuNexus. This chapter will guide you through everything you need to know to acquire and operate the QuNexus Editor.