The Allen & Heath SQ-Rack is a 48-channel / 36-bus rackmount digital mixer crafted for both live sound and installation environments. Powered by Allen & Heath’s 96 kHz XCVI FPGA engine, it delivers crystal-clear audio, ultra-low latency, and robust DSP processing in a compact 4U form factor. The SQ-Rack is designed to adapt to any challenge—whether equipping a touring band with a powerful digital mixing hub, supporting professional in-ear monitoring (IEM) systems, or providing premium sound for fixed AV installations. From intimate bars and houses of worship to cruise ships, theaters, and large venues, the SQ-Rack integrates seamlessly into diverse environments. It can function as a stand-alone system or as part of a larger SQ ecosystem, offering 48 mic/line inputs, 36 mix outputs, DEEP processing options, 8 stereo FX engines, and networking expansion via Dante, Waves, or other protocols. Compact, reliable, and versatile, the SQ-Rack is the ultimate solution for bands on the move, touring engineers, and integrators seeking world-class sound with maximum flexibility.

SQ-Rack packs the power, connectivity, and capability of the SQ into a rack-mountable 4U form factor. Heavily requested as a monitor mixer and for situations and venues without a FOH position, the SQ-Rack also lends itself to installation, studio applications and as a matrix or continuity mixer in larger

systems.  Running the same 96kHz XCVI Core as the rest of the SQ range, the SQ-Rack includes all the same features and flexibility, including ultra-low <0.7ms latency, intelligent SLink port for use with Allen & Heath’s ‘Everything I/O’ range of expanders, an I/O Port for Dante/Waves/MADI integration, 48 input channels and 36 output busses, DEEP channel processing options and 8 RackExtra FX engines.

Unique to SQ-Rack, there is a dedicated faders screen in lieu of physical faders along with an SQ-Control screen which provides simplified control for inexperienced users or instant access to key parameters such as mutes, levels and scene recalls.

19” Rack Mountable (4U)

Audio and Processing:

• 96kHz XCVI FPGA processing
• 48 input channels
• 12 stereo mixes + LR
• 3 stereo matrix (split to 6 mono)
• 8 stereo FX engines + dedicated stereo returns
• DEEP processing ready

Onboard I/O:

• 16+1 built-in mic preamps
• 3 stereo line inputs
• 12 XLR line outputs
• 2 TRS line outputs
• AES output

Control:

• 7” capacitive touchscreen
• 8 assignable SoftKeys
• 4 assignable soft rotaries
• SQ-MixPad app
• SQ-Control app
• SQ4You app

Expandability and Integration:

• SLink port for remote audio / expansion
• 64×64 I/O port for audio networking cards (Dante, Waves, MADI, SLink)

Recording and Streaming:

• SQ-Drive direct recording to USB
• 32×32 96kHz USB interface