QuNexus Reference Manual QuNexus Version 1.1.
Copyright 2007-2013 Keith McMillen Instruments a wholly owned subsidiary of Kesumo LLC. All rights reserved. Made in USA. No part of this manual may be reproduced or transmitted in any form or for any purpose without the express written permission of the copyright holders. The content of this manual is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by Keith McMillen Instruments.
Table of Contents Chapter 1 Welcome 1.1 Questions or Feedback? Contact us! 1.2 What’s in the QuNexus Package? Chapter 2 QuNexus Hardware / Getting Started 2.1 Connecting QuNexus 2.2 Input/Output Routing 2.2.1 USB 2.2.2 MIDI 2.2.2.1 The KMI MIDI Expander 2.2.3 CV 2.2.3.1 Cable Connections 2.2.3.2 CV Cable Kit 2.2.3.3 CV Data 2.2.3.4 Converting CV Input from +/- 10V to 0V/5V 2.2.3.5 Dual Expression and Sustainer Inputs 2.2.4 Converting Data Types 2.3 Left Side Buttons 2.3.1 The Oct Buttons 2.3.
3.8.5 MIDI Channel 3.8.6 Channel Rotation 3.8.7 Toggle 3.8.8 Transpose 3.8.9 LEDs Local/Remote 3.8.10 Program Change 3.8.11 Bend Range 3.8.12 Key Priority 3.9 Controller Layer 3.9.1 Sensor Settings 3.9.1.1 Participate 3.9.1.2 Controller Layer Sources 3.9.1.3 Controller Layer Toggle 3.10 CV Layer 3.10.1 CV Output (MIDI to CV) 3.10.2 CV Input (CV to MIDI) 3.10.3 CV Trims Chapter 4 Troubleshooting 4.1 Connectivity Trouble 4.1.1 Touchy USB Connection 4.2 CV Trouble 4.2.1 Steps to Convert MIDI to CV 4.2.
Chapter 1 Welcome QuNexus is a vividly illuminated keyboard controller that is fun for beginners and a must for professionals. 25 touch-sensitive keys detect finger pressure, velocity, and tilt, giving you an unprecedented degree of musical control. Blue and white LEDs with 16 levels of brightness give you valuable feedback. Use the toggle feature to build chords and create your own step sequencer or arpeggiator with LED feedback. QuNexus is your hub for new and vintage technology.
Chapter 2 QuNexus Hardware / Getting Started 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. We also provide a QuNexus Editor application (for Mac and Windows), which allows further customization (discussed in Chapter 3). This chapter is a guide to getting started using QuNexus out of the box and will provide detailed information about how to use the hardware features of QuNexus. Dimensions: 12.
Connect QuNexus to MIDI hardware: The image shows QuNexus connected to a hardware MIDI device via our MIDI Expander (sold separately): 1. Use a USB A-to-Mini cable to connect the QuNexus Mini port (on the right side of the QuNexus) to the USB “Expand” port on the MIDI Expander. 2. Connect the power supply to the MIDI Expander USB “Power” port. 3. Connect the MIDI Out on the Expander to the MIDI In on a synth or other MIDI device.
Powered by KMI MIDI Expander: 1. Use a USB A-to-Mini cable to connect the QuNexus Mini port (on the right side of the QuNexus) to the USB “Expand” port on the MIDI Expander. 2. Connect the power supply to the MIDI Expander USB “Power” port. 3. See steps 2 and 3 from the “Powered by a Computer” steps. Powered by USB Power Supply: 1. Use a USB A-to-Mini cable to connect the QuNexus Mini port (on the right side of the QuNexus) to a USB Power Supply. 2. Connect the Power Supply to a power outlet. 3.
2.2.1 USB QuNexus is connected and powered using the Micro USB port on the left side of the QuNexus. It is a class compliant USB device and does not require a driver. This allows for maximum compatibility with an extremely wide range of other devices. 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.
2.2.2.1 The KMI MIDI Expander The KMI MIDI Expander is an optional accessory, which enables use of QuNexus with hardware MIDI devices. Plug the receiving MIDI device into the MIDI Out port and QuNexus will send MIDI data through a regular 5-pin MIDI cable. Dimensions: 4” x 1.25” x 1.25” (inches). Weight: 2.5 oz. To use QuNexus with the KMI MIDI Expander follow these steps: 1. Connect a QuNexus to the KMI MIDI Expander (see Connecting QuNexus for instructions). 2.
2.2.3.1 Cable Connections There are 2 CV output ports on the left side of the QuNexus and 1 CV input port on the right side. Outputs - Since the two output ports use stereo 1/8in connectors (TRS - shown below), they provide 4 outputs: a gate output and three 16-bit CV outputs. Output voltages range from 0 to 5V. Inputs - The input port should be used with a TRRS connector (shown below) to access both CV inputs and the 5V Power for an expression pedal. QuNexus' CV In is uni-polar.
When using a y-cable or adapter to split the QuNexus CV outputs to get mono outputs, the tip is black (or white) and the ring is red. This can vary from cable to cable. When using a cable or adapter to split the QuNexus CV input port to get 2 mono inputs and 5V power: tip is white (or black), 1st ring is red, and the 2nd ring is yellow. This can vary from cable to cable.
3.5mm (1/8in) TRRS plug to dual 3.5mm (1/8in) stereo jacks This is helpful for splitting the CV input port into CV1 (expression pedal) and CV2 Tip: make sure to use stereo 1/8in cables to plug into the jacks CV OUTPUT: 3.5mm (1/8in) stereo plug to dual 3.5mm (1/8in) mono plugs This is helpful for splitting the first CV output into Gate and CV1 3.5mm (1/8in) stereo plug to dual 3.5mm (1/8in) mono plugs This is helpful for splitting the second CV output into CV2 and CV3 2.2.3.
2.2.3.4 Converting CV Input from +/- 10V to 0V/5V QuNexus’ CV In is uni-polar. If you send it a bi-polar signal, half of the signal will be clipped and can cause malfunctions in extreme cases. Sending a signal above 5 Volts is also unsupported. You can convert a bi-polar 10V signal to a uni-polar 5V signal.
2.2.3.5 Dual Expression and Sustainer Inputs It is possible to create a TRRS cable wired so that you can use two Expression or Sustainer pedals with QuNexus.
2.2.4 Converting Data Types It is possible to use QuNexus to convert data from MIDI to CV and vice versa. This can be accomplished in multiple ways: With a Computer: The image on the right shows the QuNexus connected to a computer, a CV device, and a MIDI device via the KMI MIDI Expander. By default, the QuNexus will automatically send data to all three. To get the computer to communicate with the MIDI Device use QuNexus’ virtual MIDI Port 2.
2.3 Left Side Buttons The buttons on the left side of the QuNexus perform useful functions that alter the behavior of the keyboard. This chapter will explore the use of each button: Togl A, Velo B, Shift/Preset, Pres C, Tilt D, Bend, and the Oct Buttons. 2.3.1 The Oct Buttons There are 2 triangular Oct buttons that increment or decrement the keyboard octave (Keyboard Layer only).
2.3.2 The Bend Pad The Bend Pad is located in the bottom left corner of the QuNexus. It acts similarly to a pitch wheel. When playing the keyboard, if you are holding down a note, pressing the Bend pad will bend the pitch of the note. Shift pressure on the Bend Pad from side to side to bend up and down. When using a Preset that uses Channel Rotation the Bend Pad sends out on all active Channels. If no keys are held down it will send out on the main starting Channel.
Steps to select a Preset: 1. Tap the Shift / Preset button. 2. Choose a Preset (A, B, C, or D). For information about the four Factory Presets see the Factory Preset chapter. The Factory Presets can be customized and new presets can be created using the QuNexus Editor. 2.3.4 Togl A, Velo B, Pres C, & Tilt D These buttons turn different functions on and off. To switch them on and off hold down on the button for approximately 1 seconds.
Velo B - This button turns velocity response on and off for notes in Keyboard Layer*. If the blue LED is lit velocity response is on. If the LED is off then the velocity of each note will be 127. Velo B is on by Default Hold Velo B for 1 sec to turn Velocity Off Pres C - Turn on and off anything assigned to the pressure source in Keyboard Layer* with this button.
2.4 Data Sources and Sensor Output QuNexus can output MIDI data that comes from several different sources: Key Velocity, Pressure, Tilt, and Expression Pedal. Listed below are definitions for each of these: 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. Sensitivity can be adjusted using the QuNexus Editor (see the QuNexus Editor chapter for more information).
2.4.1 Factory Presets Preset A (Basic) - The Basic preset functions as a traditional MIDI keyboard and will work with any MIDI-enabled software. Though some of the more exciting functions are turned off, the basic preset outputs notes with a variable velocity and is a great starting point when working with QuNexus! ● ● ● ● ● ● ● MIDI outputs on Channel 1 through USB and MIDI Expander. Velocity is on. Local LED Control is on. Channel Rotation is off. Pitch Bend Range is set to 2 semitones.
Preset C (Poly Pitch Bend) - The Poly Pitch Bend preset allows for individual pitch and modulation amounts on different keys by outputting each key’s message on its own MIDI channel. This functionality, which we call Channel Rotation, allows each key to send its own pitch bend message. Basically, when using the Poly Pitch Bend preset you have 10 pitch bend wheels -- one at the tip of each finger.
2.4.2 CoMA Mode Many DAWs and performance software tools like Ableton Live and Apple’s Logic have MIDI Mapping modes that will recognize MIDI data from a controller and map it to whatever you choose. Since the QuNexus can have multiple data sources outputting from one key, it is often necessary to use the Controller Mapping Assistant (CoMA). CoMA mode allows quick mapping of each available data source one at a time, enabling rapid and efficient software/controller pairings. 2.4.2.
Channel Rotation off: Keyboard Layer 1. After entering CoMA Mode hit the desired source button: a. “Velo” button for note b. “Pres” button for pressure i. skip to step 3 c. “Tilt” button for tilt i. skip to step 3 2. Hit the desired key to output a Note (use octave buttons to switch octaves if necessary for note mapping). a. All keys in Keyboard Layer have the same CC#s for Pressure or Tilt, so all you need to do is press the source button to output the MIDI message. 3. The key’s MIDI message will output.
Channel Rotation on: Keyboard Layer 1. After entering CoMA Mode the Channel Key LED will be on, prompting you to enter the Channel number you wish to assign. Select the Channel number using the -Oct+ buttons to increment or decrement to the desired number. The numbered keys display what number you are on as you go. a. Since the QuNexus keys only have number labels up to 12, numbers above 12 in Live Edit Mode are displayed with a solid LED in the tens place and a blinking LED in the ones place. i.
Channels. If no keys are held down it will send out on the main starting Channel. If Channel Rotation is on you can map it in CoMA Mode after selecting the Channel (after step 2 from previous page). To map it push it on fully and then push it all the way off. 2.5 Live Edit Mode Live Edit Mode is mainly intended for making quick edits on the fly.
The rest of the things you can do in Live Edit Mode are set up pretty much the same way. Listed below is an outline of the basic steps to edit everything else. Following these steps you can find information that is more specific to each function. 1. Hit the key button associated with what you wish to edit (see details below steps). 2. Use the -Oct+ buttons to increment or decrement to the desired number. The numbered keys display what number you are on as you go. a.
To change the MIDI Output Channel number, use the key labeled “Channel” with the steps listed on the previous page (shown below). To set the Pitch Bend Range use the key labeled “Bend” with the steps listed on the previous page (shown below). You can go from 0 to 12 semitones. If it is set to 0, Pitch Bend will be disabled. The Bend Range will apply to the Bend Pad and also anything set to Pitch Bend in Keyboard Layer. To send Program Change messages you don’t have to hit a key button first.
exception to Preset D, which uses Channel 9) but the Channel number is editable using the QuNexus Editor. See the LED Mode chapter for more information. Chapter 3 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. 3.
3.3 Updating the Firmware Make sure the editor and the firmware versions are compatible with each other. When the QuNexus Editor opens, it checks to make sure the firmware on the device is compatible with the application. If the firmware is not compatible, an update prompt will appear. Click ok and wait until the blue Shift button light stops flashing. The blue light and progress bar on screen indicate that the firmware update is in progress.
3.4 Main Window Overview The QuNexus Editor opens with this window: Customize the QuNexus output and input using the Keyboard, Controller, and CV tabs (Layers). Just above the right side of the tabbed box are the global sensitivity settings to control Gain, On Threshold, Off Threshold, and Tilt Sensitivity for the QuNexus keys. Controls for saving and recalling presets are found on the right side of the window. There are tabs for editing Keyboard Layer, Controller Layer, and CV Layer.
3.5 Saving Presets Select presets by clicking on them in the Library. There are four Factory Presets. See Factory Presets chapter for descriptions of the first four, which come already loaded onto the QuNexus. See below for descriptions of the Reason and SymphonixEvolution presets. After clicking a Preset, the name of it will appear above the tabs. Now you can make changes to the Preset. The Preset name will turn red and an asterisk will appear next to it to indicate it has unsaved changes.
These will control something different depending on the Instrument used. The C# key in the lower octave acts as a toggle between modes. In the first mode the keys in the lower octave will control different parameters than in the second mode. For more information on using this preset with Reason, refer to the QuNexus Reason Quickstart document. SymphonixEvolution - Symphonix Evolution is a keyboard/synth app for iPad. Use this preset to extend the functionality of QuNexus with Symphonix Evolution.
3.6 Menu Bar The QuNexus Editor’s Menu Bar contains several useful features. The File menu duplicates the New, Save, Delete, and Revert Preset functions from the Preset Library box, assigning them shortcuts to add convenience. You can also Revert or Import Factory Presets. Revert Preset to Factory causes the currently preset parameters to change to the Factory Preset selected from the menu. The name will not change. Import Factory Preset will create a new slot with the original Factory Preset.
All Off - None of the LEDs will light. The Keyboard LEDs will not respond to Remote LED Control. LEDs will still light up normally in Preset Select and Live Edit Modes. LED Refresh Mode saves in the preset so make sure to save and send your preset to QuNexus in order for this option to take effect. All of the Factory Presets use Normal mode. For information about the Per Key Sensitivities option see the Per Key Sensitivities chapter. For information about the CV Trims option see the CV Trims chapter.
3.7.1 Per Key Sensitivities It is possible to adjust the sensitivities of each key individually. To do this go up to the menubar and select Hardware and choose Per Key Sensitivities... The above window will open. Use the sliders to make adjustments to the sensitivities of specific keys. Move the slider up to make the key more sensitive or down to make it less sensitive. Adjustments made here are added to the sensitivity setting in the main window.
3.8 Keyboard Layer Here you can choose how the QuNexus keys output MIDI. Start with what type of MIDI data you want, go across the row, and end with the output destination (USB, Expander, or USB + Expander). For example, if you want to add Pitch Bend to your keyboard follow these steps: 1. Find Pitch Bend in the first column. 2. Go across the row and select the desired source in the second column (like tilt). 3.
Pitch Bend: Each note can bend its pitch using this type. Pitch bend is currently 7 bit. The bend range in part depends on the MIDI device used for output but is also settable on our end using the Bend Range box (see chapter 3.8.11 for more information). Channel Pressure: The Channel Pressure message is for sending a continuous pressure value (from 0-127) for the entire keyboard (an average of the pressure of all keys on one channel).
3.8.3 Gain, Offset, Curve, Min, and Max After selecting your source for the MIDI data type, you can then further modify what values you are sending to your MIDI device/software by using the math modifiers in the next five columns. Gain: The number in the gain box is used to multiply the raw value coming from the source. For example, setting the gain number box to “2” will double whatever value is received from the source. Setting the gain box to 0.5 will cut the value from the source in half.
3.8.3.1 View/Edit Tables The Tables window is accessible from the Hardware Menu. When you first open it you will see the window shown above. You can select a table to view in the menu in the bottom right corner. If you select “Custom 1” or “Custom 2” the tables become editable. When the table is editable, the line will turn green (as shown in the image to the right). You will be able to click the buttons along the bottom of the window to start with one of the other curves.
3.8.4 Out The possible output destinations for the MIDI data results are: USB: MIDI goes from the QuNexus keyboard to an attached computer through USB Port 1. Expander: If a KMI MIDI Expander is attached, the MIDI data will go out the Expander’s 5-pin MIDI Out port. USB + Expander: MIDI data goes out the KMI MIDI Expander’s 5-pin MIDI Out port and to a computer through USB port 1. 3.8.5 MIDI Channel Set the output channels In the MIDI Channel box in the bottom left corner.
3.8.7 Toggle The Toggle box includes a menu to select between Off, On, and Legato. Below are descriptions of each setting: Off - Toggle Mode will initialize as off. Pressing a key sends a note on, releasing the key sends a note off. On - Toggle Mode will initialize as on. Pressing a key sends a note on, a second press on the same key turns that note off. Pressing a different key sends a note on without turning off the previous key. Tap the Togl A button on the left side of the QuNexus to clear all notes.
Remote LED Control is always allowed but if Local LED Control is enabled, the LEDs will prioritize the Local LED Behavior. So if you’ve sent a Remote LED Note on message to a key and then touch and release the same key, the LED will turn off. This is because when you released the Note the Local LED behavior turns the LED off. See the Controlling LEDs chapter for more information about Remote LED Control. 3.8.10 Program Change Here you can set the Preset to use a Program Change Message.
3.9 Controller Layer The Controller Layer tab appears next to Keyboard Layer. Here you can assign each key its own additional Note, Toggle CC#, Pressure CC#, and Tilt CC#. Do this by clicking on any key in the image so that it is highlighted with a green border. Then look below the image at the Sensor Settings. Tip: CV Layer does not convert MIDI Messages from Controller Layer. 3.9.1 Sensor Settings Here you can decide what to enable for the highlighted Key.
3.9.1.1 Participate There are two “Participate” checkboxes on the right side of Controller Layer’s Sensor Settings, one for Keyboard Layer and one for Controller Layer. These allow you to isolate specific keys for controller use only, keyboard use only, or both. If Participate in Keyboard Layer is disabled, the selected key will no longer play its regular note or contribute to controlling Channel Pressure, Poly After Touch or anything else that might have been set up in the Keyboard Layer tab.
3.9.1.3 Controller Layer Toggle There is a dedicated CC# for Toggling in Controller Layer. This has nothing to do with the Toggle options in Keyboard Layer. In fact, you must disable “Participate in Keyboard Layer” in order to use the Toggle CC#. This is because Keyboard Layer has it’s own built in Toggle behavior which cannot interact with Controller Layer’s Toggle.
3.10 CV Layer Here you can choose how the QuNexus keys send and receive CV (Control Voltage). QuNexus has 4 possible CV outputs and 2 possible CV inputs (see the CV chapter for the hardware specs). There is a box labeled Gate S Trig in the upper right corner; if this is checked, the gate output will be inverted so that gate on is 0V and gate off is 5V. Some older synthesizers use this paradigm. Please consult the technical specifications of your synthesizer if you are unsure which gate signal it needs.
4. Select Pitch Bend as the MIDI Type in column 3. 5. Use the math modifications if you wish to, or leave them the same if you don’t wish to alter the data output with math. Tip: The Channel parameter here in CV Layer is used only for messages coming from the USB Ports, not the keyboard itself. The CV outputs will use MIDI notes from Keyboard Layer regardless of the Channel.
Chapter 4 Troubleshooting If you are having trouble of any kind make sure you double check the following before moving on to the chapters below that address specific problems: 1. With your QuNexus plugged in check Audio MIDI Setup's MIDI view (Mac only) and make sure QuNexus' icon is active (not grayed out). Or open up the QuNexus Editor (Mac or Windows) and make sure it says “Connected” just above the QuNexus logo. If not, try these: 1. Unplug your QuNexus and plug it back in. 2.
4.1.1 Touchy USB Connection If your QuNexus is powering on and off with just the slightest touch of the USB cable, or the QuNexus itself, then you likely have a less than stellar cable. It may seem that it’s the USB port on the QuNexus causing this, but it really is much more likely to be the cable’s fault. We have yet to see a QuNexus with a faulty USB port (though not to say that this is impossible).
4. Plug the Stereo end of the y cable into the Gate - CV 1 port or the CV 2 - 3 port. 5. Plug the 2 MONO ends into the CV destinations on your CV device. a. If plugged into the Gate - CV 1 port, the QuNexus presets send note ons and offs out the gate and pitch out CV1. b. If plugged into the CV 2 - 3 port, the QuNexus presets B, C, and D send Pressure out CV 2 and Pitch Bend out CV 3.
4. Create a MIDI Track and set its "MIDI From" menu to QuNexus Port 1 (set channel to all channels or make sure you're using the same channel that the QuNexus preset is outputting it's MIDI Data on. 5. Set the "MIDI To" menu to QuNexus Port 3 (the CV port). Set the Channel to "Ch. 2" if you are using a Factory Presets. All Factory Presets use Channel 2 for CV output and input.
8. Plug the Stereo end of the y cable into the Gate - CV 1 port or the CV 2 - 3 port. 9. Plug the 2 MONO ends into the CV destinations on your CV device. a. If plugged into the Gate - CV 1 port, the QuNexus presets send note ons and offs out the gate and pitch out CV1. b. If plugged into the CV 2 - 3 port, the QuNexus presets B, C, and D send Pressure out CV 2 and Pitch Bend out CV 3.
3. Plug a CV device into the Pedal / CV 1-2 In: a. If using an Expression Pedal you can plug in with a stereo 1/8in connection. b. For separate use of both CV 1 and 2 use a TRRS splitter like the one that comes in the QuNexus CV Cable Kit (click on the link for more information). 4. QuNexus’ CV will enter the MIDI device as CC numbers on Channel 2. a. The Expression pedal will use CC# 112 b. CV 2 will use CC# 113 5. Make sure the MIDI Device is set up to receive the correct CC# on Channel 2. 6.
4.2.2 Audible High Pitched Noise in Computer Audio When Using CV Some may experience a high pitched frequency when using QuNexus with a laptop while connected to CV synths. Causes: It is possible that noise from the QuNexus LEDs can bleed into the power supply of the laptop, which might cause audible interference when mixing audio from the laptop with external synths. This can vary by computer and synth. Solution: Currently, there are three approaches to resolve this problem: 1.
Solution: Make sure the CV signal you are sending QuNexus is uni-polar and within a 0-5 Volt range. You can convert a bi-polar 10V signal to a uni-polar 5V signal. Though we do not provide a converter, you can make one using the schematic shown below: 4.3 Firmware Trouble If you are having trouble with your QuNexus Firmware, are experiencing odd behavior after an update, or just want to know more about firmware, then this is the chapter for you. 4.3.
Causes: This is typically caused by updating the firmware on your QuNexus and then not updating the presets. A firmware update also restores the factory presets to their original states. If you’ve created your own custom presets using the QuNexus Editor you will need to resend them to your QuNexus.
• Once done, remember to update your presets Don’t worry about unplugging your QuNexus while the firmware update is in progress - you’re not going to hurt it and it will not be damaged. 4.3.3 General Firmware Information and Suggestions This section contains potentially helpful information and suggestions regarding QuNexus, its firmware, and things to look for when troubleshooting. 4.3.3.
4.3.3.3 “Hotplugging” on Windows On Windows machines it is possible to experience some connectivity issues between QuNexus and the QuNexus Editor. This is true for Macs as well, but this issue is much more prevalent on computers running Windows operating systems. If your QuNexus is plugged in but the QuNexus Editor is still showing “not connected” above the QuNexus logo (meaning it can’t find the QuNexus) after you open it, you should try reversing the steps.
other devices, or it may respond to MIDI in a slightly different, perhaps undesirable way. Even fixing a bug with an update can cause problems if you’ve already grown accustomed to the “buggy” behavior and developed the muscle memory around it. Always give yourself time to test things out before changing your performance setup. Always. You will be much less stressed if you know what to expect from your gear and software.
2. Download or locate the firmware file you would like to install, along with the “Enter Bootloader” sysex command file (zip files for your current version can be downloaded here: http://files.keithmcmillen.com/downloads/qunexus/sysex_files/) 3. Plug in your QuNexus and open SysEx Box 4. Select QUNEXUS Port 1 (or Port 1) in the MIDI In and MIDI Out ports 5. Click “Open Sysex File”. When the browser window opens, navigate to the enter bootloader file (typically named “enter_bootloader.
Safety Precautions Medical Devices QuNexus may emit electromagnetic fields. These electromagnetic fields may interfere with pacemakers or other medical devices. If you wear a pacemaker, maintain at least 6 inches (approximately 15 cm) of separation between your pacemaker and QuNexus. If you suspect QuNexus is interfering with your pacemaker or any other medical device, stop using QuNexus and consult your physician for information specific to your medical device.
