Allen & Heath SQ6+ 48-Channel Digital Mixer

Modern live production demands more than channel count alone—it requires speed, flexibility and processing power that can adapt to changing workflows in real time. The Allen & Heath SQ6+ 48-channel digital mixer is built around a 96kHz XCVI FPGA core that delivers ultra-low latency performance, phase-coherent mixing and extensive routing flexibility for demanding live sound, installed audio and recording environments. Designed as an evolution of the SQ platform, the SQ6+ combines expanded processing power with a redesigned 9" capacitive touchscreen interface, integrated RackUltra FX processing and Allen & Heath’s DEEP processing architecture for advanced channel shaping directly within the console. With 25 motorized faders, expanded local I/O and a workflow-focused control layout, the SQ6+ is well suited for houses of worship, theaters, production companies and touring systems that require increased hands-on control while maintaining an efficient footprint.

96kHz XCVI Processing With Ultra-Low Latency

At the center of the SQ6+ is Allen & Heath’s XCVI FPGA processing core, operating at 96kHz with a system latency of less than 0.7 ms for highly responsive live mixing and monitor applications. The engine supports 48 input processing channels alongside stereo main LR, 12 configurable mono/stereo group and aux mixes, four FX sends and six linkable matrix outputs, giving engineers the flexibility to manage complex productions with confidence. By maintaining phase alignment and coherence across the signal path, the SQ6+ preserves clarity and imaging even during large channel counts and demanding routing configurations. Whether mixing front-of-house, monitors or multitrack playback sessions, the console’s processing architecture is designed to remain stable, fast and consistent under real-world production workloads.

RackUltra FX and Integrated DEEP Processing

The SQ6+ expands the platform’s processing capabilities with eight internal FX engines and four dedicated RackUltra FX engines with dedicated stereo return channels, featuring advanced Allen & Heath algorithms designed for modern live production. Effects such as Spaces Reverb, Plate Reverb, Saturator and Amp+Cab processing provide studio-style depth and tonal shaping directly within the console, reducing reliance on external processors and outboard racks. The mixer also supports Allen & Heath DEEP processing, allowing engineers to integrate premium compressor, preamp and channel processing models directly into input and mix channels without adding additional latency. Advanced vocal tools including Vocal Tuner, Vocal Shifter and harmonizer processing further expand the console’s utility for contemporary live performance and worship applications.

Expanded Touchscreen Workflow and Hands-On Control

Designed for fast navigation during live production, the SQ6+ features a redesigned user interface centered around a larger 9" capacitive touchscreen display that improves visibility and workflow efficiency across mixing, routing and effects management tasks. Twenty-five 100 mm motorized faders operate across six customizable channel strip layers, giving engineers expanded simultaneous channel access for larger productions and more detailed mix management. Sixteen assignable SoftKeys and four assignable Soft Rotaries streamline workflow customization and quick access to frequently used controls, while configurable chromatic channel meter LEDs improve visual feedback in fast-paced environments. The result is a control surface that balances increased hands-on operation with a footprint suitable for portable and installed audio systems alike.

Flexible Connectivity for Live and Installed Audio

Built to integrate into a wide range of professional audio systems, the SQ6+ includes 24 local XLR mic/line inputs, 16 XLR outputs, stereo line inputs, AES3 digital output and a 128x128 Intelligent SLink port for expansion with Allen & Heath stage boxes and networked audio systems. A built-in 32x32 USB-B audio interface supports multitrack recording and playback directly with Mac and PC systems at 48kHz or 96kHz, while SQ-Drive functionality enables stereo or multichannel playback and recording directly to USB media through the USB-A connection. The mixer also supports optional Dante, Waves, MADI and additional expansion card formats through its 64x64 option card slot, allowing the SQ6+ to scale into larger installed, broadcast and touring audio infrastructures as production requirements evolve. Remote network control through Allen & Heath control apps further expands operational flexibility for front-of-house, monitor and installed audio workflows.

Expanded SQ Control for Demanding Productions

Combining high-resolution FPGA processing, expanded onboard effects, scalable connectivity and a larger hands-on control surface, the SQ6+ is designed for live production environments where speed, visibility and workflow flexibility are essential. Its increased fader count and expanded local connectivity provide engineers with greater direct control over complex mixes while maintaining the streamlined operation and portability that define the SQ platform. From houses of worship and theater productions to corporate AV systems and touring applications, the Allen & Heath SQ6+ digital mixer delivers advanced SQ-series performance with enhanced operational control for demanding professional workflows.

Allen & Heath SQ6+ 48-Channel Digital Mixer: FAQ

What is the Allen & Heath SQ6+ designed for?
The SQ6+ is designed for professional live sound, worship, theater, installed audio and touring applications that require advanced routing, expanded hands-on control and low-latency digital mixing.

What is new in the SQ6+ compared to the previous SQ6?
The SQ6+ adds expanded processing power, a larger 9" capacitive touchscreen with a redesigned interface, RackUltra FX processing and updated workflow enhancements while retaining the SQ platform’s 96kHz XCVI FPGA core architecture.

How does the SQ6+ differ from the SQ5+?
The SQ6+ provides more hands-on control with 25 motorized faders, expanded local I/O, additional assignable SoftKeys and assignable Soft Rotaries, making it well suited for larger productions and more complex mixing workflows.

Can the SQ6+ record multitrack audio directly to a computer?
Yes. The SQ6+ includes a built-in 32x32 USB audio interface for multitrack recording and playback with Mac and PC systems at up to 96kHz.

Does the SQ6+ support stage boxes and network expansion?
Yes. The mixer features a 128x128 Intelligent SLink port for connection to Allen & Heath stage boxes and expansion systems, along with support for optional Dante, Waves and MADI networking cards.