Allen & Heath Qu-SB front view
Allen & Heath Qu-SB side view
Allen & Heath Qu-SB rear view
Allen & Heath Qu-SB with Qu-PAD Mixing App
Allen & Heath Qu-SB front right view

Allen & Heath Qu-SB Digital Mixer

Portable 18 IN / 14 OUT digital mixer

Product Highlights

  • Rack Mountable Digital Mixing System
  • compatible with Qu-SB Optional Rack Mount kit (sold separately)
  • 32 Mon + 3 Stereo channel digital mixer, 4 effects, 24 busses
  • Touch screen onboard Qu-drive multi-track recording
  • Built in Dsnake
  • Up to 11 Monitor Mixes (4 mono + 7 stereo)
  • iLive FX Library
  • iPAD control via Qu-Pad iPad App (free download)

Sale Price $1,199.00
Retail Price $1,499.00
You save $300.00


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Allen & Heath Qu-SB Digital Mixer

The Qu-SB is a super-compact digital mixer and interface created specifically for iPad control. This allows you to mix from any location in the venue and provides an intelligent, portable tool for bands, AV and installation. The designated Qu-Pad app is both an elegant and refined intuitive mixing interface, providing easy access to the complete catalogue of Qu features and setup options. In addition to its 18 onboard inputs and 14 outputs, the Qu-SB allows for up to 32 mono inputs and 24 outputs by connecting to one of Allen & Heath's family of remote AudioRacks via a single Cat5 cable. When you add the Qu-You personal monitoring app for Android and iOS and the ME-1 personal mixers, the Qu-SB is an awesome choice for bands in search of a quality and consistent monitor sound wherever they perform. For rack mounting, the Qu-SB Optional Rack Kit is available.



Allen & Heath Qu-SB Key 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 AnaLOGIQTM Preamps
  • iLive FX Library
  • dSNAKE Remote Audio Port expansion up to 38 inputs
  • Qu-SB Optional Rack Mount kit available

Allen & Heath Qu-SB Additional Features:

  • 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 (free download)
  • 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

Qu-Pad Mixing App

Having massive processing power and advanced functionality is great, but it counts for nothing if you can’t access the controls you need in a heartbeat. 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. *Requires the connection of a Wi-Fi router or access point to the Qu Network port.


Qu-SB’s sixteen AnalogiQTM total recall preamps feature zero crossing detection and an advanced padless 1dB 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 24bit analogue to digital converters matched to high quality 24bit digital to analogue converters to deliver the required outputs. The AnalogiQTM design has been refined over many months to offer superb transparency, minimal distortion and an ultra-low noise floor, with a warm, musical sound that is missing from some digital consoles.


Forget soundcard drivers and software setup, Qu has an integrated multitrack USB recorder, providing 18 channels of 48kHz, 24bit recording and playback straight to / from your USB hard drive. Capturing multitrack recordings of your shows has never been so easy. Mixes and FX returns can be recorded alongside channels, and multitrack audio can be played back to the mixer for virtual sound-checks. 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. Some of the world’s most respected audio engineers have chosen to use iLive’s FX on tour in preference to top-end plug-ins and external FX units. Qu-SB boasts 4 stereo iLive FX engines, featuring lovingly crafted 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 minimising the risk of feedback. The Automatic Microphone Mixer feature helps the engineer to 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.

USB Audio Streaming

Qu’s built-in interface streams multitrack audio to your Mac or PC via a flexible patching system: all Input channels and the Main LR can be recorded at the same time, or you may choose to record something different such as FX returns or a pair of mixes. The returns from the computer can be assigned to the Input  channels. The interface is class-compliant on Mac OS X – and drivers are available for Windows systems. Either way, it will be recognized straightaway by any DAW supporting ASIO or Core Audio, including Logic, Cubase, Reaper, and Pro Tools.

Qu-SB Expansion

Qu-SB can be expanded to up to 38 inputs via dSNAKE, allowing a convenient Cat5 connection to a combination of remote AB168, AR2412 or AR84 AudioRacks. dSNAKE is our proprietary networking solution, boasting a transport latency of only 105us over cable runs of up to 120m / 390’. The AudioRacks unleash all the power of Qu-SB, giving you access to extra outputs for Stereo Matrix, Groups, or extra monitor Mixes.

Allen & Heath Qu-SB Digital Mixer

Mic/Line Inputs:

  • Balanced, XLR and 1/4" TRS jacks, fully recallable
  • Input Sensitivity: -60 to +5 dBu / -50 to +15 dBu (XLR / TRS)
  • Analog Gain: -5 to +60 dB, 1 dB steps
  • Maximum Input Level: +19 / +29 dBu
  • 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%, -83 dBu (20 Hz to 20 kHz, direct out @ 0 dBu, 1 kHz)
  • Stereo Line Inputs     ST1 Connector: Balanced, 1/4" (6.3 mm) TRS jacks, half-normalled
  • Input Sensitivity (ST1): +4 /0 dBu, nominal
  • Trim: ±24 dB
  • Maximum Input Level (ST1): +22 /+18 dBu
  • Input Impedance: >7 kOhms


  • Line Outputs: Mix 1 to 10 & 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 dBu (muted, 20 Hz to 20 kHz)
  • Stereo Output: MTX 1-2: 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: -90 dBu (muted, 20 Hz to 20 kHz)


  • Inputs: Remote source for CH1-32, ST1, ST2, ST3
  • Outputs: Patchable from Mix 1-10, LR, Grp 1-8, MTX 1-4
  • Compatible with AudioRacks AR2412, AR84, AB168
  • Compatible with ME personal mixing system

Call 1-877-477-6432 for any technical questions or if you need SPECIAL PRICING regarding this product

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