Allen & Heath Qu-SB Portable 18-In/14-Out Digital Mixer

BH #ALAHQUSB • MFR #AH-QU-SB
Allen & Heath
Allen & Heath Qu-SB Portable 18-In/14-Out Digital Mixer
Key Features
  • 16 Mic/Line Inputs
  • 16 Recallable AnalogiQ Preamps
  • 12 Mix Outputs
  • 32x32 USB Recording Interface
Designed to accommodate a wide variety of live-sound reinforcement and recording scenarios, the Allen & Heath Qu-SB is an 18-in/14-out rack-mountable, console-less digital mixer that doubles as a 32x32 USB recording interface. Featuring 16 of the company's recallable AnalogiQ microphone preamps, and powered by a 5-core ARM processor, the Qu-SB provides a variety of integrated effects and processing, including channel-independent 4-band parametric EQs, compressors, delay, and reverb.
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$999.00
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Allen & Heath Qu-SB Overview

  • 1Description
  • 2Qu-Pad Mixing App
  • 3AnalogiQ Preamps
  • 4Qu-Drive
  • 5iLive FX
  • 6Automatic Mic Mixer (AMM)
  • 7General Features

Designed to accommodate a wide variety of live-sound reinforcement and recording scenarios, the Allen & Heath Qu-SB is an 18-in/14-out rack-mountable, console-less digital mixer that doubles as a 32x32 USB recording interface. Featuring 16 of the company's recallable AnalogiQ microphone preamps, and powered by a 5-core ARM processor, the Qu-SB provides a variety of integrated effects and processing, including channel-independent 4-band parametric EQs, compressors, delay, and reverb.

The mixer is compatible with both the ME Personal Mixing System and dSNAKE digital connectivity system from Allen & Heath, which allows for up to 38 inputs. The Qu-SB is designed to 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.

Qu-Pad Mixing App

  • Qu-SB is designed to integrate seamlessly with the Qu-Pad iPad app, providing super-fast, easy access to all settings, including channel processing, meters and RTA views, FX racks, scene management, USB audio control, setup menus and much more
  • Qu-Pad connects to the mixer over Wi-Fi and gives you the freedom to adjust the monitors on stage, roam around the venue whilst tweaking the PA, and then mix the show from the heart of the audience

AnalogiQ Preamps

  • Qu-SB's sixteen AnalogiQ total recall preamps feature zero-crossing detection and an advanced pad-less 1 dB step gain stage, closely allied to the DSP for optimal gain accuracy and audio transparency. The analogue signal is captured by high-class, low-latency 24-bit analog-to-digital converters matched to high-quality 24-bit digital-to-analog converters to deliver the required outputs. The AnalogiQ design offers superb transparency, minimal distortion and an ultra-low noise floor, with a warm, musical sound

Qu-Drive

  • Qu-SB has an integrated multitrack USB recorder, providing 18 channels of 48 kHz/24-bit recording and playback straight to/from your USB hard drive. Mixes and FX returns can be recorded alongside channels, and multitrack audio can be played back to the mixer for virtual soundchecks
  • An independent set of controls is provided for quick stereo recording of the main LR or other mix outputs, and a 2-track USB return can be routed to ST3 for playback of stereo WAV files such as walk-in music

iLive FX

  • Qu-SB's dynamics and FX algorithms are derived from the FX used in the iLive pro touring series. Qu-SB boasts 4 stereo iLive FX engines, featuring emulations of legendary classic reverbs, gated reverbs, delays, modulators, flangers and more

Automatic Mic Mixer (AMM)

  • AMM is vital in applications such as conferences, meetings and panel discussions where a number of microphones are open at the same time, reducing background noise and minimizing the risk of feedback. The Automatic Microphone Mixer feature helps the engineer manage the levels of multiple mic inputs, ensuring that each speaker's contribution is heard. The D-Classic dynamic gain-sharing algorithm is inspired by industry-standard automixers. Up to 16 microphone sources can be mixed at once, with each channel having a priority setting which determines its 'weight' in the total system gain

General Features

  • 16 Mono Inputs (TRS + XLR)
  • 1 Stereo Input (TRS)
  • 12 on-board Mix Outputs (LR, Mono Mix 1-4, Stereo Mix 1-3)
  • 1 Stereo Matrix Out (TRS)
  • Qu-32 Core inside (32 Mono + 3 Stereo Input Channels)
  • Up to 11 Monitor Mixes (4 mono + 7 stereo)
  • 4 FX Engines
  • 4 FX Sends/Returns
  • 4 Mute Groups
  • 4 DCA Groups
  • Recallable AnaLOGIQ Preamps
  • iLive FX Library
  • dSNAKE Remote Audio Port expansion up to 38 inputs
  • Automatic Mic Mixer
  • 32×32 USB Audio Interface
  • Qu-Drive direct Multitrack Recording/Playback on USB drives
  • Compatible with ME Personal Mixing System
  • Qu-Pad iPad App
  • Qu-You iPhone/Android personal monitoring app
  • Trim, polarity, HPF, gate, insert/ducker, 4-band PEQ, compressor and delay on all Inputs
  • Insert, 1/3 octave GEQ, 4-band PEQ, compressor and delay on all Mix outputs
  • Built-in Signal Generator
  • RTA with Peak Band indication
  • 19” Rack Mountable with optional rack ears

Allen & Heath Qu-SB Specs

Mixer
Number of Analog Input Channels16
Mix Routing4 x Stereo FX Return
Groups4 x Mute Group
4 x DCA Group
Meter Range-48 to -3 dBFS Peak/Clip (+19 dBu at XLR Output)
Meter Calibration0 dB on Meter = -18 dBFS (+4 dBu at XLR Output)
Signal Processing
Gain/Trim RangeLine:
±24 dB (Stereo Channels) 
Mic/Line:
-5 dB to +60 dB (in 1 dB Steps) 
Input PolarityNormal/Reverse
Gate ParametersThreshold: -72 to +18 dBu
Depth: 0 to 60 dB
Attack: 50 μs to 300 ms
Hold: 10 ms to 5 sec
Release: 10 ms to 1 sec
Compressor ParametersThreshold: -46 to 18 dBu
Ratio: 1:1 to ∞:1
Attack: 300 μs to 300 ms
Release: 100 ms to 2 sec
Knee: Soft, Hard
EQFX Returns:
4-Band Parametric 
EQ Parameters1 x HF Shelf:
±15 dB at 20 Hz to 20 kHz (Shelf or Bell Selectable) 
2 x MF Notch/Peak:
±15 dB at 20 Hz to 20 kHz 
1 x LF Shelf:
±15 dB at 20 Hz to 20 kHz (Shelf or Bell Selectable) 
Graphic EQ28-Band 1/3 Octave, ±12 dB 31 Hz to 16 kHz
FiltersHigh-Pass: 20 Hz to 20 kHz, 12 dB/Octave  
Channel Output/Source MonitoringAFL, PFL, Post-Preamp, Post-EQ, Post-FX
Internal EffectsReverb
Delay
Reverb (Gated)
ADT
Chorus
Phaser
Flanger
Real Time Analyzer31-Band 1/3 Octave, 20 Hz to 20 kHz
Audio DelayAdjustable Up to 170 ms
Digital Audio
Sample Rates48 kHz
Stereo Record:
48 kHz
Stereo Playback:
44.1 / 48 kHz
Multitrack Record:
48 kHz
Multitrack Playback:
48 kHz
Bit DepthAD/DA Conversion:
24-Bit Delta Sigma
Stereo Record:
24-Bit
Stereo Playback:
16 / 24-Bit
Multitrack Record:
24-Bit
Multitrack Playback:
24-Bit
Latency1.2 ms (Mic Input to XLR Output)
0.7 ms (Mic Input to AES Output)
Performance
dBFS Reference Level+18 dBu = 0 dBFS
Headroom+18 dB
Frequency Response20 Hz to 20 kHz +0/-0.5 dB 
Max Input LevelMic Input:
+19 dBu 
Line Input:
+29 dBu 
Aux Input:
+22 dBu (+4 dBu) 
+18 dBu (0 dBu) 
Output LevelAux Output:
+22 dBu (Max) 
+4 dBu (Nominal) 
Line Output:
+22 dBu (Max) 
+4 dBu (Nominal) 
Analog Dynamic Range112 dB 
I/O ImpedanceAux Input:
>7 kilohms 
Aux Output:
<75 ohms 
XLR Line Output:
<75 ohms 
XLR Mic/Line Input:
>5 kilohms 
1/4" Mic/Line Input:
>10 kilohms 
Noise Floor-90 dBu with Inputs Muted
THD+NMic/Line Input:
0.0005% at Unity Gain 
0.001% at +30 dB Gain 
Signal GeneratorSine, White, Pink, or Band-Pass Noise (Assignable to Any Mix)
Connectivity
Analog Inputs1 x XLR Talkback Input
16 x XLR Balanced Mic Input
16 x 1/4" TRS Balanced Line Input
2 x 1/4" TRS Balanced Aux Input (1 Stereo Pair, Half-Normalled)
Analog Outputs10 x XLR Balanced Mix Output
2 x XLR Balanced Main Output
2 x 1/4" TRS Balanced Output (1 Stereo Pair)
Digital I/O1 x RJ45 (Network)
1 x etherCON dSNAKE (I/O)
USB1 x USB Type-A (External Memory)
1 x USB Type-B (USB 2.0, Audio Streaming)
Recording
Max Multitrack Recording18 Tracks
Power
AC Input Power100 to 240 VAC, 50 / 60 Hz
Power Consumption150 W (Maximum)
Physical
Rackmount Size4RU
Operating Temperature32 to 95°F / 0 to 35°C
Dimensions17.1 x 6.9 x 6.3" / 435.5 x 174.5 x 161 mm (Desk-Mounted)
19 x 5.3 x 7" / 483 x 135.4 x 177 mm (Rack-Mounted)
Weight12.7 lb / 5.8 kg
Packaging Info
Package Weight13.6 lb
Box Dimensions (LxWxH)21.6 x 10.3 x 10.2"
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