Description
The Allen & Heath SQ-Rack is a 48-channel, 36-bus 96 kHz rackmount digital mixer designed for live sound, AV, touring, and installations. Powered by the XCVI FPGA engine, it delivers pristine audio quality with ultra-low latency under 0.7 ms and full DEEP processing support. It features 16 onboard mic preamps, 3 stereo line inputs, 12 stereo mixes, 3 stereo matrices, and 8 stereo FX engines with dedicated returns. Extensive expansion is available via SLink and optional Dante, Waves, or MADI cards, plus a built-in 32×32 USB audio interface and SQ-Drive recording. Control is handled through a 7″ touchscreen, assignable SoftKeys and Soft Rotaries, and full remote operation using SQ apps. Housed in a rugged 4U all-metal chassis, SQ-Rack is ideal for fixed installs, touring rigs, and professional IEM systems without compromising power or flexibility.


96kHz XCVI Core Engine
Powered by Allen & Heath’s 96 kHz XCVI FPGA, SQ-Rack delivers pristine high-resolution audio with ultra-low latency below 0.7 ms. It handles 48 input channels with exceptional headroom, while DEEP Processing runs studio-grade compressor and preamp models on every channel with zero added latency.


Flexible I/O
SQ-Rack includes 16 onboard mic preamps, stereo line inputs, and SLink expansion to scale up to 48 mic inputs via remote stageboxes. A 64×64 I/O option slot supports Dante, Waves, MADI, and SLink cards for seamless integration into modern audio networks.


Remote Control Mixing
Its compact 4U faderless design offers fast control via touchscreen, SoftKeys, and assignable Soft Rotaries. Full remote mixing is supported through SQ MixPad, SQ4You, and SQ Control apps on iOS, Android, macOS, and Windows.


Processing, FX & Recording
Each channel features full processing with HPF, gate, parametric EQ with RTA, and Peak/RMS compression. Eight stereo FX engines with dedicated returns plus SQ-Drive and a 32×32 USB interface enable premium effects and effortless multitrack recording and playback.
- 16 Microphone Preamps
- 7″ Capacitive Touchscreen
- 96 kHz XCVI FPGA Processing
- Eight Stereo FX Engines with Returns
- 32 x 32 96 kHz USB Audio Interface
- AES Output
- 12 Stereo Mixes + LR
- 8 Assignable SoftKeys + 4 Soft Rotaries
- SLink Port for Remote Audio & Expansion
- SQ MixPad and Control Apps
Max I/O Capacity: 48x Input / 14x Output
Number of Analog Input Channels: 20 (16 Mono / 4 Stereo)
Number of Mic Preamps: 16
Number of Analog Output Channels: 14
Mix Routing:
12x Stereo Main LRC
3x Stereo Matrix
8x Stereo FX Return
Presets: Yes
Display: LCD Touchscreen
Dynamic Processing: Input Channels: Compressor
EQ: 4-Band Parametric
Graphic EQ: Yes
Solo/Mute: Mute per Input Channel
Audio Delay: Yes
Automatic Mic Mixing: Yes
Sample Rates: 96 kHz
Bit Depth: 96-Bit
Analog Inputs:
16x XLR 3-Pin Balanced Stereo Mic/Line Input
1x XLR Talkback Input
4x 1/4″ Stereo Line Input (2 Stereo Pairs)
1x 1/4″ Footswitch Input
Analog Outputs:
10x XLR 3-Pin Mono Output
2x XLR Stereo Output (1 Stereo Pair)
Digital I/O: 1x XLR AES3
USB I/O:
1x USB-B (Host Connection)
1x USB-A (External Memory, Recording)
USB I/O Capacity: 32x Input / 32x Output
Expansion Ports: 1x I/O Card
Wireless: Proprietary Wireless
Max Multitrack Recording: 48 Tracks
Media Support: USB Drive
OS Compatibility: Windows / macOS
Rack Mountable: Yes
Rackmount Size: 4 U















