Allen & Heath SQ-RACK 4RU 48-Channel 96kHz Rackmount Digital Mixer for Live Sound / AV and Installations

A New Standard in Compact Digital Mixing
Allen & Heath’s SQ-Rack is the ultimate tool for audio professionals, delivering Allen & Heath’s renowned 96kHz SQ core in a compact, rack-mountable design. Perfectly crafted to meet the demands of live sound and installation environments, SQ-Rack combines power, flexibility, and intuitive control in one versatile solution.

Core. Connectivity. Control.
SQ-Rack packs SQ’s 96kHz XCVI core into a shallow 4RU rack-mount form factor with built-in I/O, powerful SLink connectivity, option cards, and multichannel USB. Enjoy hands-on controls and customizable screens, along with remote access via SQ apps for ultimate control of your audio.

96kHz XCVI Processing
SQ-Rack is built on Allen & Heath’s renowned 96kHz XCVI FPGA engine, delivering exceptional high-resolution audio quality, ultra-low latency of <0.7ms and variable bit depths for optimised dynamic range. XCVI allows SQ to handle 48 input channels at 96kHz, with massive mix headroom thanks to a 96bit accumulator, and the sheer power to embed our acclaimed DEEP plugins into all 48 input channels and all mixes.

Comprehensive I/O Expansion
SQ-Rack features 16 high-quality onboard mic preamps and 3 stereo line inputs, and thanks to the integrated SLink port, adding more inputs and outputs is easy. Up to 48 mic inputs can be added via Allen & Heath’s extensive “Everything I/O” range of audio expanders.

You can just slot in one of our 64×64 audio networking cards for seamless integration into Dante and Waves networks, digital FoH/Monitor splits with SQ, Avantis and dLive mixers via SLink, or for MADI connectivity with third-party equipment.

No Faders? No Problem!
Despite SQ-Rack’s faderless design, there are no compromises when it comes to control.

The SQ-Rack’s faders screen provides instant access to level controls, plus 8 SoftKeys and 4 Soft Rotaries – all assignable with LCD displays – so you get to choose which functions you have at your fingertips.

The SQ MixPad app for Android, iOS, Windows, and macOS provides access to the SQ-Rack’s mixing functions from anywhere in the venue, with an offline mode allowing preparation of scenes or shows away from the venue.

Features:

• 96kHz XCVI Core
• 48x Input processing channels
• Stereo Main LR Output
• 12x Mixes (Group/Aux, Stereo/Mono)
• 3x Stereo Matrix
• 17x XLR Mic/Line Input Sockets
• 4x TRS Line Input Sockets
• 1x 3.5mm Stereo Input Socket
• 12x XLR Output Sockets
• 2x TRS Output Sockets
• 1x AES3 Stereo Digital Output Socket
• 128×128 Intelligent SLink Port for Everything I/O expansion and system connections
• 64×64 I/O Port for Option Cards
• Stereo Headphone Output
• 8x FX Engines with dedicated Returns
• 7″ Capacitive Touchscreen and associated Rotary control
• 8x SoftKeys
• 4x Soft Rotaries and associated Keys
• SQ-Drive For stereo or multichannel audio record/playback and data transfer
• USB-B Audio interface for multichannel record/playback (32×32)
• Configurable single/dual Footswitch Connection
• 19″ Rack Mountable (multi-position rack ears included)
• IEC Mains Connection with Worldwide PSU
• RJ45 Network Socket
• Remote control via free apps – Windows/MacOS/iOS/Android

Specifications:

Inputs
• Mic/Line Inputs: Balanced XLR, fully recallable
• Input Sensitivity: -60 to +0dBu
• Switchable Pad: -20dB
• Analog Gain: 0dB to +60dB, 1dB steps
• Maximum Input Level: +30dBu
• Input Impedance: >5kΩ
• THD+N, Unity gain 0dB: 0.002% -92dBu (20Hz-20kHz, AES Direct Out, @0dBu 1kHz)
• THD+N, Mid gain +30dB: 0.003% -91dBu (20Hz-20kHz, AES Direct Out, @-30dBu INPUT 1kHz)
• Phantom Power: +48V (+3V / -2V)
• Stereo Line Inputs:
  – ST1, ST2 connectors: Balanced, 1/4″ TRS jack
  – ST3 connector: Unbalanced, stereo 3.5mm Mini Jack
  – Input Sensitivity (ST1, ST2/ST3): Nominal +4dBu ST1, ST2/0dBu ST3
  – Trim: +/-24dB
  – Maximum Input Level (ST1,ST2/ST3): +22dBu/+18dBu
  – Input Impedance: >7kΩ

  Outputs

• XLR Outputs: Balanced, XLR
• Outputs A and B: Balanced 1/4″ TRS Jack
• Source: Patchable
• Output Impedance: <75Ω
• Nominal Output: +4dBu = 0dB meter reading
• Maximum Output Level: +22dBu
• Residual Output Noise: -90dBu
• AES Digital Output:
  – Balanced XLR 2 channel, 96kHz sampling rate
  – Switchable output sample rates,44.1kHz/ 48kHz/ 88.2kHz/ (96kHz)
  – 2.5Vpp balanced terminated 110Ω

  SLink

• Connection: Neutrik EtherCON (RJ45)
• dsnake Mode (48kHz devices): 40 input 20+40(ME) output channels
• DX Mode (96kHz devices): 32 input 32 output channels
• GigaACE/GX (96kHz devices): 128 input 128 output channels
• Inputs: Fully Patchable
• Outputs: Fully Patchable
• Sync/SRC: Assignable as master audio sync for all modes, 48kHz< >96kHz SRC

  I/O Port

• Multi-channel I/O option module
• Inputs: Fully Patchable
• Outputs: Fully Patchable
• Sync/SRC: Assignable as master audio sync

  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
• THD+N, Mic/Line routed to Main L/R Out: Unity gain faders@ 0dB, 0.006%, -84dBu (20 – 20kHz)
• dBFS Alignment: +18dBu = 0dBFS
• Meter Calibration: 0dB meter = -18dBFS
• Main Meter Type: 2 x 12 segment, fast (peak) response
• Channel Meter Type: Chromatic Channel Metering, fully programmable colour/brightness
• Peak Indication: -3dBFS (+19dBu at XLR out), multi-point sensing
• Sampling Rate: 96kHz
• Bit Depth: Uses XCVI core custom bit widths in algorithms, up to 96bits
• Latency: <0.7mS, Local Mic Input to Main L/R
• Operating Temperature Range: 32°F – 104°F
• Mains Power: 100V – 240V AC, 50/60Hz
• Max Power Consumption: 75W

  Physical

• Dimenisons: Unit only: 16.9″ x 8.4″ x 6.8″
• Shipping Dimensions: 21.5″ x 13.8″ x 10.5″
• Unpacked Weight: 2.8lbs
• Packed Weight: 17.7lbs

  Control

• Touch Screen: 7″ Capacitive, 800×480 resolution, 24 bit RGB
• SoftKeys: 8
• SoftRotarys: 4
• Mute Groups/DCA Groups: 8/8
• Network: TCP/IP Ethernet for MIDI and Control
• MIDI: TCP/IP and USB-B
• Footswitch: Single or Dual, Momentary or Latching

Item Includes:

• 1x Allen & Heath SQ-RACK 4RU 48-Channel 96kHz Rackmount Digital Mixer for Live Sound / AV and Installation
• 1x Rack Ears