Allen & Heath Qu-24C

30-In/24-Out Digital Mixer

Rentex No. MXR2405 | Mfr No. AH-QU-24C
Allen & Heath

Product Highlights

  • 24 Mono Mic/Line Inputs (TRS + XLR)
  • Recallable AnaLOGIQTM Preamps
  • 3 Stereo Inputs (TRS)
  • 20 Mix Outputs (XLR)
  • Chrome Knobs & Faders + Updated Firmware
  • 2 Stereo Matrix Outs
  • Up to 9 Monitor Mixes (4 mono + 5 stereo)
  • 32×30 USB Audio Interface

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The chrome edition Qu-24C 30-In/24-Out Digital Mixer from Allen & Heath features 24 of Allen & Heath’s AnalogiQ microphone preamps and is powered by its 5-core ARM processor to provide a variety of integrated effects and processing including channel-independent 4-band parametric EQs, compressors, delay, reverb, and more. The mixer is capable of recording audio to either your Mac or a USB hard drive in up to 48 kHz/24-bit resolution, allowing you to record both the individual tracks and live mix of your shows. The chrome edition adds high-contrast chrome rotary and fader knobs that improve visibility in dark conditions, as well as a number of software enhancements from the updated firmware (V1.8).

The mixer is compatible with both the ME monitoring system and dSNAKE digital connectivity system from Allen & Heath. The Qu-24 can also be used with the Qu-Pad app, allowing you to use your iPad to mix from anywhere in the venue when connected to a wireless network.

Inputs
Mic/Line Inputs 24x Balanced combo XLR/TRS jacks, fully recallable Input Sensitivity: -60 to +10 dBu (XLR), -50 to +20 dBu (TRS) Analog Gain: -10 to +60 dB, 1 dB steps Maximum Input Level: +19 dBu (XLR), +29 dBu (TRS) Input Impedance: >5 kOhms (XLR), >10 kOhms (TRS) THD+N, Unity Gain 0 dB: 0.0005%, -89 dBu (20 Hz to 20 kHz, direct out @ 0 dBu, 1 kHz) THD+N, Mid Gain +30 dB: 0.001%, -83dBu 20 Hz to 20 kHz, direct out @ 0 dBu, 1 kHz)
Stereo Line Inputs ST1, ST2 Connector: Balanced, 1/4″ (6.3 mm) TRS Jack, half-normalled ST3 Connector: Unbalanced 1/8″ (3.5 mm) mini jack Input Sensitivity (ST1, ST2, ST3): +4 dBu/0 dBu, nominal Trim: +/-24 dB Maximum Input Level (ST1, ST2, ST3): +22 dBu/+18 dBu Input Impedance: >7 kOhms

 

Outputs
Line Outputs Mix 1 to 10, GRP 1 to 4, MTX 1 to 4, LR Out: Balanced XLR Output Impedance: <75 Ohms Nominal Output: +4 dBu = 0 dB meter reading Maximum Output Level: +22 dBu Residual Output Noise: -90 C31 dBu (muted, 20 Hz to 20 kHz)
Stereo Output Alt Output & 2 Trk Output: Balanced 1/4″ (6.3 mm) TRS jacks Source (Alt Output/2 Trk Output): Patchable/LR post fade Output Impedance: <75 Ohms Nominal Output: +4 dBu = 0 dB meter reading Maximum Output Level: +22 dBu Residual Output Noise: -91 dBu (muted, 20 Hz to 20 kHz)
AES Digital Audio Outputs 2-channel 48 kHz sampling rate XLR Out 2.5 Vpp balanced terminated 110 Ohms

 

dSNAKE
InputsRemote source for Channels 1 to 24, ST1, ST2, ST3
OutputsRemote outputs for Mix 1 to 10, LR Compatible with AudioRacks AR2412, AR84 Compatible with ME personal mixing system

 

System
Dynamic Range 112 dB
Frequency Response 20 Hz to 20 kHz (+0/-0.5 dB)
Headroom+18 dB
Operating Level Internal Operating Level: 0 dBu
AlignmentdBFS: +18 dBu = 0 dBFS (+22 dBu @ XLR output)
CalibrationMeter Calibration: 0 dB meter = -18 dBFS (+4 dBu @ XLR output)
IndicatorsMeter Peak Indication: -3 dBFS (+19 dBu @ XLR out), multi-point sensing Meter Signal Indication: -48 dBFS (-26 dBu @ XLR out) Meter Type: Fast (peak) response
Sampling Rate 48 kHz +/-100 PPM
Converters24-bit Delta-Sigma
Latency1.2 ms (local XLR in to XLR out) 0.7 ms (local XLR in to AES out)
Operating Temperature 32° to 95°F (0° to 35°C)
PowerMains Power: 100-240 V AC, 50/60 Hz, 120 W maximum

 

Controls
Faders 4″ (100 mm), motorized
Touchscreen5″ TFT, 800 x 480 resolution
Softkeys10
Mute Groups 4
NetworkTCP/IP Ethernet for MIDI commands and iPad app

 

Input Processing
SourceChannels 1 to 24: Local, dSNAKE, or USB ST1, ST2, ST3: Local, dSNAKE, or USB
Stereo Linking Odd/even input pairs Parameters Linked: EQ, dynamics, insert, delay, assignments, sends Link Options: Preamp, polarity, sidechains, fader, mute, pan
PolarityNormal & reverse
HPF12 dB/octave, 20 Hz to 20 kHz
InsertAssign FX to input channels
DelayUp to 85 ms
GateSelf-key sidechain Threshold: -72 dBu to +18 dBu/ Depth: 0 to 60 dB Attack: 50 μs to 300 ms Hold: 10 ms to 5 s Release: 10 ms to 1 s
Equalizer4-band fully parametric, 20 Hz to 20 kHz, +/-15 dB Band 1: Selectable LF shelving (Baxandall), bell Band 2 & 3: Bell Band 4: Selectable HF shelving (Baxandall), bell Bell Width: Non-constant Q, variable, 1.5 to 1/9 octave
CompressorSelf-key sidechain Threshold: -46 to 18 dBu Ratio: 1:1 to infinity Attack: 300 μs to 300 ms Release: 100 ms to 1 s Knee: Soft or Hard Types: Peak manual, RMS manual, SlowOpto, PunchBag
OutputChannel Direct Out to USB: Follow fader, follow mute (global options) Source Select (Global): Post-preamp, pre-EQ, post-EQ, post-delay

 

Mix Processing
InsertAssign FX into Mix channels
DelayUp to 170 ms
EqualizerGraphic EQ: Constant 1/3 octave, 28 bands from 31 Hz to 16 kHz, +/-15 dB Parametric EQ: 4-band fully parametric, 20 Hz to 20 kHz, +/- 15 dB Band 1: Selectable LF shelving (Baxandall), bell Band 2 & 3: Bell Band 4: Selectable HF shelving (Baxandall), bell Bell Width: Non-constant Q, variable, 1.5 to 1/9 octave
CompressorSelf-key sidechain Threshold: -46 to 18 dBu Ratio: 1:1 to infinity Attack: 300 μs to 300 ms Release: 100 ms to 1 s Knee: Soft or Hard Types: Peak manual, RMS manual, SlowOpto, PunchBag
Effects Internal FX: 4x RackFX engines, Send>Return or Inserted Types: Reverbs, delays, gated reverbs, ADT, chorus, symphonic chorus, phaser, flanger 4x Dedicated Stereo FX Returns: Fader, mute, routing to Mix/LR, 4-band PEQ

 

Audio Tools
PAFLPFL or stereo in-place AFL 0 to -24 dB trim 85 ms delay
TalkbackAssignable to any mix 12 dB/octave HPF
Signal Generator Assignable to any mix Sine, white, pink, bandpass noise
RTA31-bands, 1/3 octave 20 Hz to 20 kHz Follows PAFL source

 

General
Dimensions (WxDxH) Desk-Mounted: 24.9 x 19.7 x 7.4″ (632 x 500 x 186 mm)
Weight31 lb (14 g)