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

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

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

B&H # ALAHQUSB MFR # AH-QU-SB
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Product Highlights

  • 16 Mic/Line Inputs
  • 16 Recallable AnalogiQ Preamps
  • 12 Mix Outputs
  • 32x32 USB Recording Interface
  • 4 Built-In FX Engines
  • iPad App for Wireless Mixing
  • EQ & Dynamics on Each Input and Output
  • RTA with Peak Band Indicator
  • Up to 38 Inputs via dSNAKE
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  • 1Description

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
In the Box
Allen & Heath Qu-SB Portable 18-In/14-Out Digital Mixer
  • IEC Power Cord
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description
    Inputs
    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
    Outputs
    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)
    dSNAKE
    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
    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
    Alignment dBFS: +18 dBu = 0 dBFS (+22 dBu @ XLR output)
    Calibration Meter Calibration: 0 dB meter = -18 dBFS (+4 dBu @ XLR output)
    Indicators Meter 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
    Converters 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 32 to 95°F (0 to 35°C)
    Power Mains Power: 100-240 VAC, 50/60 Hz, 150 W maximum
    USB
    USB Audio Qu-Drive: USB A
    Device: Use a USB hard drive (not a USB key)
    Stereo Record: 2-channel, WAV, 48 kHz, 24-bit, patchable
    Stereo Playback: 2-channel, WAV, 44.1 or 48 kHz, 16- or 24-bit, to ST1
    Multitrack Record: 18-channel, WAV, 48 kHz, 24-bit, patchable
    Multitrack Playback: 18-channel, WAV, 48 kHz, 24-bit
    USB Audio Streaming: USB B, Core Audio compliant
    Send (upstream): 32-channel, WAV, 48 kHz, 24-bit
    Return (downstream): 32-channel, WAV, 48 kHz, 24-bit
    Controls
    Softkeys 10
    Groups Mute Groups: 4
    DCA Groups: 4
    Network TCP/IP Ethernet for MIDI commands and iPad app
    Input Processing
    Source Channels 1 to 32: Local, dSNAKE, or USB
    ST1, ST2: Local, dSNAKE, or USB
    ST3: Local, dSNAKE, or USB Stereo
    USB Global Source: Qu-Drive or USB B Streaming
    Stereo Linking Stereo Linking: Odd/even input pairs
    Parameters Linked: EQ, dynamics, insert, delay, assignments, sends
    Link Options: Preamp, polarity, sidechains, fader, mute, pan
    Polarity Normal & reverse
    HPF 12 dB/octave, 20 Hz to 20 kHz
    Insert Assign FX1-4 into input channels
    Delay Up to 85 ms
    Gate Self-key sidechain
    Threshold: -72 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
    Equalizer 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
    Compressor Self-key sidechain
    Threshold: -46 to 18 dBu
    Ratio: 1:1 to infinity
    Attack: 300 μs to 300 ms
    Release: 100 ms to 2 s
    Knee: Soft or Hard
    Types: Peak manual, RMS manual, SlowOpto, PunchBag
    Mix Processing
    USB Output Channel Direct Out to USB: Follow fader, follow mute (global options)
    Source Select (Global): Post-preamp, pre-EQ, post-EQ, post-delay
    Insert Assign FX into Mix channels
    Delay Up to 170 ms
    Equalizer Graphic EQ: Constant 1/3 octave, 28 bands from 31 Hz to 16 kHz, +/-12 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
    Compressor Self-key sidechain
    Threshold: -46 to 18 dBu
    Ratio: 1:1 to infinity
    Attack: 300 μs to 300 ms
    Release: 100 ms to 2 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, pan, mute, routing to Mix/LR, 4-band PEQ
    Audio Tools
    PAFL PFL or stereo in-place AFL
    0 to -24 dB trim
    85 ms delay
    Talkback Assignable to any mix
    12 dB/octave HPF
    Signal Generator Assignable to any mix
    Sine, white, pink, bandpass noise
    RTA 31-bands, 1/3 octave 20 Hz to 20 kHz
    Follows PAFL source
    General
    Dimensions (WxDxH) Desk mounted: 17.1 x 6.9 x 6.3" / 435.5 x 174.5 x 161.0 mm
    Rack mounted: 19.0 x 5.3 x 7.0" / 483.0 x 135.4 x 177.0 mm, 4U
    Weight 12.7 lb / 5.8 kg
    Packaging Info
    Package Weight 13.6 lb
    Box Dimensions (LxWxH) 21.6 x 10.3 x 10.2"

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