Introduction
The Allen & Heath QU-16C Chrome Edition is a compact, rack-mountable digital mixer designed for professional audio applications. It integrates advanced features and technologies from larger Allen & Heath systems, offering a powerful and intuitive mixing experience. This manual provides essential information for setting up, operating, and maintaining your QU-16C mixer.
Safety Information
Please read and understand all safety warnings and instructions before operating the QU-16C mixer. Retain this manual for future reference.
- Power Supply: Use only the specified power adapter. Ensure the voltage matches your local power supply.
- Ventilation: Do not block ventilation openings. Ensure adequate airflow around the unit to prevent overheating.
- Moisture: Do not expose the unit to rain or moisture. Avoid placing liquids on or near the mixer.
- Servicing: Refer all servicing to qualified service personnel. Do not attempt to service the unit yourself.
- Placement: Place the mixer on a stable, level surface or securely mount it in a rack. Avoid extreme temperatures or direct sunlight.
What's in the Box
Upon unpacking your Allen & Heath QU-16C, please verify that all the following items are included:
- QU-16C Chrome Mixer
- Power Cable
- User Manual (this document)
If any items are missing or damaged, please contact your dealer or Allen & Heath support immediately.
Setup
This section guides you through the initial setup of your QU-16C digital mixer.
Physical Placement and Connections
The QU-16C is designed for both desktop use and rack mounting. Ensure the mixer is placed in a location with sufficient ventilation and away from direct heat sources.

Figure 1: Front view of the Allen & Heath QU-16C Digital Mixer, showcasing its control surface and touchscreen.
Power Connection: Connect the supplied power cable to the IEC inlet on the rear panel of the mixer and then to a suitable AC power outlet. Ensure the power switch is in the 'Off' position before connecting.

Figure 2: Rear panel of the QU-16C, highlighting the various input and output connections including XLR, TRS, USB, and Network ports.
Audio Inputs: The QU-16C features 16 AnalogiQ total recall preamps. Connect your microphones and line-level sources to the XLR/TRS combo jacks on the rear panel. Channels are labeled 1-16.
Audio Outputs: Connect your main PA system, monitors, and other output devices to the XLR 'Mix outputs' and 'R-Main-L' outputs. Additional outputs like AES out and 2TRK out are also available.
USB Connection: For multi-track recording and playback, connect a USB cable from the 'USB B' port on the mixer to your computer. The QU-16C supports USB audio streaming.
Network Connection: The 'Network' port allows for remote control via the Qu-Pad Mixing App on an iPad. Connect an Ethernet cable from this port to a Wi-Fi router.
Initial Power-Up
- Ensure all connections are secure.
- Flip the power switch on the rear panel to the 'On' position.
- The mixer will perform a self-test and boot up. The touchscreen will display the main interface.
- The motorized faders will calibrate to their stored positions.
Operating the QU-16C
The QU-16C offers a user-friendly interface with a combination of physical controls and a responsive touchscreen.
Control Surface Overview
The mixer's control surface is divided into several key areas:
- Input Channels: Each channel features a motorized fader, Mute button, Select button, and a rotary encoder for gain and other parameters.
- Touchscreen: The 5-inch, 800x480 pixel touchscreen provides visual feedback and access to deeper settings, routing, effects, and scene management.
- Rotary Encoders: Dedicated data encoder and other rotary controls allow for precise adjustments of parameters displayed on the screen.
- FX Section: Access to iLive FX, allowing for high-quality effects processing.
- Master Section: Dedicated master fader and controls for main mix outputs.
Key Features and Functions
- 17 Motorized ALPS Faders: These faders provide instant access to all channels and masters, dynamically following the mix selection for intuitive control.
- AnalogiQ Preamps: High-quality preamps with zero crossing detection and a 1dB step gain stage ensure pristine audio capture.
- iLive FX: Integrated effects processing derived from Allen & Heath's iLive series, offering a wide range of studio-grade effects.
- 100-Scene Recall: Save and recall up to 100 complete mixer setups, including fader positions, processing, and routing.
- USB Audio Streaming: Record multi-track audio directly to a USB drive or stream to a computer for DAW integration.
- Automatic Mic Mixer (AMM): Firmware V1.8 and later includes an AMM feature, ideal for conferences and panel discussions.
- Qu-Pad Mixing App: Control the mixer wirelessly from your iPad, allowing you to mix from anywhere in the venue.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your QU-16C mixer.
- Cleaning: Use a soft, dry cloth to clean the exterior of the mixer. For stubborn dirt, a slightly damp cloth with mild soap can be used, followed by a dry cloth. Avoid abrasive cleaners or solvents.
- Dust Protection: When not in use, cover the mixer with a dust cover to prevent dust and debris from entering the faders and controls.
- Fader Care: The motorized faders are precision components. Avoid applying excessive force or liquid to them.
- Software Updates: Regularly check the Allen & Heath website for firmware updates to ensure your mixer has the latest features and bug fixes.

Figure 3: The QU-16C mixer shown with a protective dust cover, recommended for long-term storage or transport.
Troubleshooting
This section addresses common issues you might encounter with your QU-16C mixer.
| Problem | Possible Cause | Solution |
|---|---|---|
| No audio output | Master fader down, Mute engaged, incorrect routing, faulty cables. | Check master fader level, ensure channels and master are unmuted, verify output routing on touchscreen, test cables. |
| No input signal | Gain too low, Mute engaged, faulty microphone/instrument, incorrect input selection. | Increase input gain, ensure channel is unmuted, test microphone/instrument, verify input patching. |
| Faders not moving | Mixer not powered on, fader calibration issue, hardware fault. | Ensure power is on. If issue persists after power cycle, contact support. |
| Touchscreen unresponsive | Temporary software glitch, hardware fault. | Perform a power cycle (turn off and on). If issue persists, contact support. |
For more detailed troubleshooting or issues not listed here, please refer to the comprehensive online resources or contact Allen & Heath support.
Specifications
Detailed technical specifications for the Allen & Heath QU-16C Digital Mixer:
- Item Model Number: AH-QU-16C
- Number of Channels: 16
- Item Weight: 16.06 pounds (7.3 Kilograms)
- Product Dimensions: 24 x 13.8 x 26.8 inches
- Hardware Interface: USB
- Power Source: Corded Electric
- Standing Screen Display Size: 5 inches
- Connectivity Technology: USB
- First Available Date: December 2, 2015
Warranty and Support
For information regarding the product warranty, please refer to the warranty card included with your purchase or visit the official Allen & Heath website. Warranty terms and conditions may vary by region.
For technical support, service, or further inquiries, please visit the Allen & Heath support page on their official website or contact your local distributor. Keep your purchase receipt and serial number handy when contacting support.