The Allen & Heath QU-24C is a robust, 24-channel digital mixer designed for professional live sound, recording, and broadcasting environments. With a sleek and intuitive interface, it features 24 premium mic preamps, a 7-inch touchscreen for easy navigation, and motorized faders for seamless control. The QU-24C boasts a 32x30 USB audio interface for direct multitrack recording and playback, while its Qu-Drive allows for stereo and multitrack recording directly to a USB drive. It also supports remote control via the Qu-Pad app, making it ideal for both front-of-house and studio applications. The mixer is housed in a durable, lightweight metal chassis, ensuring reliability and portability for any audio professional.
• 24 mono Mic/Line channels
• 3 stereo Line channels
• 32 sources to the mix
• 12 mixes (4 mono, 3 stereo, LR)
• 4 FX with 4 FX send buses
• 10 assignable SoftKeys
• 4 Mute Groups
• 32 out, 30 in USB streaming
• 2 stereo Groups
• 2 stereo Matrix
• Extra stereo outputs -- AES digital, Alt • Out, 2TRK out
• Talkback mic input
• dSNAKE for remote audio using an AR2412 or AR84 AudioRack
• AnaLOGIQ™ total recall analogue preamps
• Effects ported from the flagship iLive console
• Dedicated stereo FX return channels
• Master strip for quick access to mix levels and processing
• Input channel linking for stereo sources
• Input processing -- Preamp, HPF, Gate, PEQ, Compressor, Delay
• Output processing -- PEQ, Graphic EQ, • Compressor, Delay
• 800x480 pixel colour touch screen for quick control
• Motorised faders for sends on faders, GEQ fader flip and mix recall
• Quick copy and reset of settings and scenes
• 100 Scene memories
• Scene Recall Filter and channel Safes
• Channel processing User Libraries
• Qu-Drive for stereo and 18-track recording/playback to USB hard drive
• USB streaming to/from an Apple® Mac computer (PC not supported)
• MIDI DAW Control driver for Mac (converts to HUI or Mackie Control)
• USB transfer of Scenes, Libraries, Shows
• User assignable Custom Layer
• Qu-Pad wireless remote app for iPad
• Compatible with the Allen & Heath ME personal mixing system
• User Permissions to restrict operator access (Not available in V1.3)
Mic/Line 1-24: Balanced, XLR and 1/4" TRS jack, fully recallable
Mic Input Sensitivity (XLR / TRS): -60 to +10dBu / -50 to +20dBu
Mic Analogue Gain: -10 to +60dB, 1dB steps
Mic Maximum Input Level (XLR / TRS): +19dBu / +29dBu
Mic Input Impedance (XLR / TRS): >5kOhms / >10 kOhms
Mic THD+N, Unity gain 0 dB: 0.0005% -89 dBu (20-20kHz, Direct Out @0dBu 1kHz)
Mic THD+N, Mid gain +30dB: 0.001% -83dBu (20-20kHz, Direct Out @0dBu 1kHz)
ST1, ST2 connector: Balanced, 1/4" TRS jack, half normalled
ST3 connector: Unbalanced, 3.5mm Mini Jack
Stereo Input Sensitivity (ST1, ST2 / ST3): Nominal: +4dBu / 0dBu
Stereo Trim: +/-24dB
Stereo Maximum Input Level (ST1,ST2 / ST3): +22dBu / +18dBu
Stereo Input Impedance: >7kOhms
Mix1-10 and LR Out, Grp1-4, MTX1-4 Balanced, XLR
Output Impedance: <75Ohms
Nominal Output: +4dBu = 0dB meter reading
Maximum Output Level: +22dBu
Residual Output Noise: -91 dBu (muted, 20-20kHz)
Stereo Alt Out & 2Trk Out: Balanced, 1/4" TRS jack
Source (Alt Output / 2Trk Output): Patchable / LR post-fade
Output Impedance: <75Ohms
Nominal Output: +4dBu = 0dB meter reading
Maximum Output Level: +22dBu
Residual Output Noise: -91 dBu (muted, 20-20kHz)
AES Digital Output: 2 channel, 48kHz sampling rate, XLR. 2.5Vpp balanced terminated 110Ohms
dSNAKE Inputs: Remote source for CH1-24, ST1, ST2, ST3
dSNAKE Outputs: Remote outputs for Mix1-10, LR. Compatible with AudioRacks AR2412, AR84. Commpatible with ME personal mixing system
System: Measured balanced XLR in to XLR out, 0dB gain, 0dBu input
Dynamic Range: 112 dB
Frequency Response: +0/-0.5dB 20Hz to 20kHz
Headroom: +18dB
Internal operating Level: 0dBu
dBFS Alignment: +18dBu = 0dBFS (+22dBu at XLR output)
Meter Calibration: 0dB meter = -18dBFS (+4dBu at XLR out)
Meter Peak indication: -3dBFS (+19dBu at XLR out), multi-point sensing
Meter Signal indication: -48dBFS (-26dBu at XLR out)
Meter Type: Fast (peak) response
Sampling Rate: 48kHz +/-100PPM
ADC, DAC: 24-bit Delta-Sigma
Latency: 1.2 ms (local XLR in to XLR out). 0.7 ms (local XLR in to AES out)
Operating Temperature Range: 0 deg C to 35 deg C (32 deg F to 95 deg F)
Mains Power: 100-240V AC, 50/60Hz, 82W max (Qu-16), 120W
USB Audio Qu-Drive: USB A
USB Audio Device: Use a USB hard drive (not a USB key)
USB Audio Stereo Record: 2 channel, WAV, 48kHz, 24-bit, patchable
USB Audio Stereo Playback: 2 channel, WAV, 44.1 or 48kHz, 16 or 24-bit, to ST3
Multitrack Record: 18 channel, WAV, 48kHz, 24-bit, patchable
Multitrack Playback: 18 channel, WAV, 48kHz, 24-bit
USB Audio Streaming: USB B, Core Audio compliant
Send (upstream): 24/32 channel, WAV, 48kHz, 24-bit
Return (downstream): 22/30 channel, WAV, 48kHz, 24-bit
Faders: 100mm motorised
Touch Screen: 5" TFT, 800x480 resolution
SoftKeys: 10
Mute Groups: 4
Network: TCP/IP Ethernet for MIDI and iPad app
Input Processing ST1, ST2: Local, dSNAKE, or USB
Input Processing ST3: Local, dSNAKE, or USB
Input Processing USB: Global Source Qu-Drive or USB B Streaming
Input Stereo Linking: Odd/even input pairs
Input Parameters linked: EQ, dynamics, insert, delay, assignments, sends
Input Link options: Preamp, polarity, sidechains, fader/mute, pan
Input Polarity: Normal/Reverse
Input High Pass Filter: 12dB/octave 20Hz -- 2kHz
Input Insert: Assign FX into Input channels
Input Delay: Up to 85ms
Input Gate: Self key Sidechain
Input Threshold / Depth: -72dBu to +18dBu / 0 to 60dB
Input Attack / Hold / Release: 50us to 300ms / 10ms to 5s / 10ms to 1s
Input PEQ: 4-Band fully parametric, 20-20kHz, +/-15dB
Input Band 1: Selectable LF Shelving (Baxandall), Bell
Input Band 2, Band 3: Bell
Input Band 4: Selectable HF Shelving (Baxandall), Bell
Input Bell Width: Non-constant Q, variable, 1.5 to 1/9th octave
Input Compressor: Self key Sidechain
Input Threshold: / Ratio -46dBu to 18dBu / 1:1 to infinity
Input Attack / Release: 300us -- 300ms / 100ms - 2s
Input Knee: Soft/Hard
Input Types: Peak Manual, RMS Manual, SlowOpto, PunchBag
Input Channel: Direct Out to USB Follow Fader, follow Mute (global options)
Input Source select (global): Post-Preamp, Pre-EQ, Post-EQ, Post-Delay
Mix Insert: Assign FX into Mix channels
Mix Delay: Up to 170ms
Mix GEQ: Constant 1/3 oct, 28 bands 31Hz-16kHz, +/-12dB Gain
Mix PEQ: 4-Band fully parametric, 20-20kHz, +/-15dB
Mix Band 1: Selectable LF Shelving (Baxandall), Bell
Mix Band 2, Band 3: Bell
Mix Band 4: Selectable HF Shelving (Baxandall), Bell
Mix Bell Width: Non-constant Q, variable, 1.5 to 1/9th octave
Mix Compressor: Self key Sidechain
Mix Threshold / Ratio: -46dBu to 18dBu / 1:1 to infinity
Mix Attack / Release: 300us -- 300ms / 100ms - 2s
Mix Knee: Soft/Hard
Mix Types: Peak Manual, RMS Manual, SlowOpto, PunchBag
Internal FX: 4x RackFX engine, Send>Return or Inserted
FX Types: Reverbs, Delays, Gated Reverb, ADT, Chorus, Symphonic Chorus, Phaser, Flanger
4 dedicated Stereo FX returns: Fader, Pan, Mute, Routing to Mix/LR, 4-Band PEQ
PAFL: PFL or stereo in-place AFL, 0 to -24dB Trim, 85ms Delay
Talkback: Assignable to any mix, 12dB/oct HPF
Signal Generator: Assignable to any mix, Sine / White/Pink/Bandpass Noise
RTA 31-Bands 1/3 octave 20-20kHz, follows PAFL source
Dimensions Desk mounted: 632 x 500 x 186 mm (24.9" x 19.7" x 7.4")
Dimensions Packed in shipping box: 670 x 790 x 350 mm (26.4" x 31.1" x 13.8")
Unpacked weight: 14 kg (31 lbs)
Packed weight: 18 kg (40 lbs)
(1) Allen & Heath QU-24 Digital Mixer
(1) US IEC Power Cord
(1) Operator's Instructions
(1) Safety Sheets