Allen & Heath SQ-Rack delivers all the SQ Series features we know and love into a shallow 4U rack-mount form factor.
Front Panel Control
If you’re already an SQ Series user, you’ll feel close to home with the front panel.

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.
Of course, the SQ MixPad app for Android, iOS, Windows, and macOS provides access to the SQ-Rack’s mixing functions from inside venue, with an offline mode allowing preparation of scenes or shows away from the venue.
SQ-Control can be configured by an admin user to deliver just the right amount of control for each application or dry hire, whether that’s single fader control of background music from behind the bar or controlling live stream levels in a House of Worship.
Connectivity
Back panel of SQ-Rack is where all I/O lives, along with options for more.

Right out of the box, SQ-Rack has got enough I/O to get things started, with 16 XLR mic/line inputs (plus talkback mic input via XLR), and a couple of Stereo In channels via pairs of ¼” jacks. Output is handled by 12 XLR outputs, plus 2x TRS line outputs and an AES output.
But for ultimate channel count (48 Channel / 36 Bus), you can connect via the onboard SLink to any of the compatible I/O expanders – most typically the DX168, but for in-ear rigs especially, DX012 will be a go-to favourite.
Making use of the I/O port
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M-SQ-DANT32
ALL-M-SQ-DANT32$1,099.00 -
M-SQ-DANT64
ALL-M-SQ-DANT64Original price was: $1,799.00.$1,499.00Current price is: $1,499.00. -
M-SQ-WAVES3-A
ALL-M-SQ-WAVES3-AOriginal price was: $1,699.00.$1,439.00Current price is: $1,439.00. -
M-SQ-SLINK-A
ALL-M-SQ-SLINK-A$499.00 -
M-SQ-MADI
ALL-M-SQ-MADIOriginal price was: $1,499.00.$1,275.00Current price is: $1,275.00.
Ultimate Fly Rig for Monitors
With 12 stereo mixes, ultra-low latency under 0.7ms, and powerful parametric and graphic EQs on every mix, SQ-Rack is the perfect centrepiece for in-ear monitoring setups. Its shallow 4U size fits easily into IEM racks, making it ideal for touring.
SQ-Rack lets you take control of your monitor mixes for a consistent sound at every show, and without relying on house equipment.
Digital split to FOH? Slot in one of the audio networking cards.
Features
Dimensions | 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 |