The Penn Group 
Introduction: The Console That Gets the Balance Right
Choosing a digital mixing console often comes down to a fundamental tension: you want enough physical controls to mix efficiently, but you also need the console to be practical in terms of size, weight, and budget. The Allen & Heath SQ-6 sits right in the middle of that tension and resolves it better than almost any console in its class. With 25 faders (24 channel faders plus a dedicated master), the same 48-channel, 36-bus, 96kHz XCVI processing engine found across the entire SQ range, and a physical footprint that remains manageable for both installed and portable applications, the SQ-6 represents what I consider the sweet spot of the SQ family.
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Having worked extensively with all three SQ models, I find myself recommending the SQ-6 more often than either of its siblings. The SQ-5 is a remarkable console for rack-mount and compact applications, and the SQ-7 is the clear choice when maximum fader count is non-negotiable. But for the majority of professional mixing scenarios — houses of worship running contemporary bands, corporate events with complex audio requirements, regional touring acts, and mid-scale theater productions — the SQ-6 provides the right amount of hands-on control without the bulk and cost of a larger format console.
This review examines the SQ-6 in detail, with particular attention to how its 25-fader layout changes the mixing workflow compared to the smaller SQ-5, and where it fits in the competitive landscape of mid-format digital consoles.
Hardware and Physical Design
The 25-Fader Advantage
The defining difference between the SQ-6 and its smaller sibling is the fader count, and this difference has a more significant impact on workflow than the number alone suggests. With 24 channel faders arranged in two banks of 12, plus a dedicated master fader, the SQ-6 allows you to see and access substantially more of your mix at any given moment. In practical terms, this means fewer layer changes during a show, faster response to mix issues, and a more confident mixing experience overall.
Consider a typical mid-sized worship service with 20 input channels: kick, snare, hi-hat, two overhead microphones, bass DI, electric guitar, acoustic guitar, keyboard left and right, four vocal microphones, a pastor’s lapel, a lectern mic, and two media playback channels. On the SQ-5, this input list spans beyond the 16-fader bank, requiring layer switching to access all channels. On the SQ-6, every single one of those inputs can live on the top layer with faders to spare. That difference — having your entire show visible and accessible without touching a layer button — fundamentally changes how you mix.
The second bank of 12 faders also opens up workflow options that are impractical on the SQ-5. You can dedicate one bank to inputs and the other to mix outputs, giving you simultaneous access to your channel faders and your aux send masters. During soundcheck, this means you can adjust a musician’s monitor send level while simultaneously tweaking the channel fader for the house mix. On the SQ-5, that operation requires a layer switch. On the SQ-6, it is a natural two-handed gesture.
Physical Dimensions and Portability
The SQ-6 is larger than the SQ-5 but remains a manageable console for portable use. It measures approximately 670mm wide, 515mm deep, and 195mm tall, and weighs around 20 kg (44 lbs). This is light enough for a single person to carry short distances, though you will want a flight case and a second pair of hands for regular load-ins. The console fits comfortably on a standard folding table or in a front-of-house position on a console stand.
Compared to competing 24-fader consoles, the SQ-6 is notably compact. The Yamaha CL1, for example, is significantly larger and heavier while offering a comparable fader count. The Midas M32 is close in size but considerably heavier. This relative compactness makes the SQ-6 practical for applications where a larger console would be physically awkward — small venue installations, portable production rigs, and corporate events where the mixing position is a temporary setup in a hotel ballroom or conference space.
Build Quality and Feel
The SQ-6 shares the same build standard as the rest of the SQ family — steel and aluminum chassis, 100mm motorized Alps faders, solid encoder knobs, and a general fit and finish that communicates professional quality. The faders are responsive with smooth motor recall, and the knobs have a positive, detented feel that makes precise adjustments reliable even in dimly lit mixing environments.
The console’s surface layout is clean and logical. Each fader strip includes an assignable soft key with an LED indicator, allowing you to set up custom per-channel functions like mute, solo, or DCA assignment. The channel select buttons above each fader strip provide a clear visual indication of the selected channel and allow quick access to that channel’s processing on the touchscreen.
The fader bank select buttons are positioned within easy reach and have clear LED indicators showing which bank is currently active. Allen & Heath has also included dedicated buttons for accessing the main mix, DCA, and auxiliary layers, which keeps navigation fast during performance.
The 7-Inch Touchscreen
The SQ-6 uses the same 7-inch capacitive touchscreen as the SQ-5 and SQ-7. On the SQ-5, the screen is proportionally large relative to the console’s surface area. On the SQ-6, it feels slightly smaller relative to the expanded fader panel, but it remains fully functional and responsive. The touch targets are adequately sized for in-show adjustments, and the hybrid touch-plus-encoder interface that Allen & Heath has implemented works effectively.
The screen displays channel processing (EQ, dynamics, DEEP plugins), routing, scene management, effects, and system configuration. The layout is consistent across the SQ range, so engineers who have used any SQ model will be immediately comfortable on the SQ-6. The processing screens deserve particular praise — the EQ display shows the frequency response curve in real time, and the dynamics displays show gain reduction metering alongside the parameter controls, giving you visual feedback that is genuinely useful during a live mix.
If there is a criticism of the screen, it is the same one that applies across the SQ range: a larger display would allow more information density, particularly in the routing matrix and scene management views. Allen & Heath’s Avantis platform addresses this with a larger 15.6-inch screen, and there are moments on the SQ-6 where you wish for that additional screen real estate. However, within the SQ’s price bracket, the 7-inch display is competitive, and the iPad app provides supplementary screen space when needed.
Processing Engine: The XCVI Core
96kHz Throughout the Signal Path
The SQ-6 runs the identical XCVI processing core as every other SQ model — a custom FPGA-based engine that processes all 48 channels and 36 buses at 96kHz with sub-millisecond latency. This is the same architecture, the same processing algorithms, and the same audio quality regardless of which SQ model you choose. Choosing the SQ-6 over the SQ-5 does not buy you better sound; it buys you more faders on the same exceptional engine.
This point is worth emphasizing because it is a fundamentally different approach from some competitors. In the Yamaha world, for example, the TF, QL, and CL series use different processing engines with different capabilities and sound characteristics. Moving up the Yamaha range gets you both more faders and a different processing platform. In the Allen & Heath SQ world, the processing is identical across the range — the SQ-5, SQ-6, and SQ-7 are different windows into the same engine.
The practical result of the 96kHz sample rate is audio quality that is noticeably refined compared to 48kHz platforms. Cymbal transients have more air and shimmer without harshness. Vocal processing — particularly de-essing and compression — operates with greater precision because the engine has more sample data to work with. The overall sound of the console has a smoothness and clarity that you typically associate with more expensive platforms.
Channel Processing Depth
Every input channel on the SQ-6 has access to the full processing chain: input trim, polarity invert, high-pass filter (adjustable frequency and slope), noise gate (with sidechain filtering), 4-band fully parametric EQ, compressor (with adjustable knee, ratio, attack, release, and makeup gain), channel delay, and a direct output with configurable tap point.
The EQ deserves particular attention because it is one of the SQ platform’s standout features. The 4-band parametric EQ has a musical quality that reflects Allen & Heath’s analog heritage. Broad boosts and cuts sound natural rather than clinical, and narrow notch filters are effective without introducing audible artifacts in the surrounding frequencies. The high and low bands can be switched between parametric and shelving modes, providing flexibility for both corrective and creative EQ applications.
The compressor is equally capable, with a wide ratio range (from gentle 1.5:1 compression to brick-wall limiting), adjustable soft/hard knee, and auto-makeup gain. The sidechain filter on the compressor allows you to filter the detection signal independently — useful for preventing kick drum bleed from triggering compression on a bass guitar microphone, or for creating frequency-conscious compression that responds only to specific frequency ranges.
On the output side, every mix bus has a 28-band graphic EQ (in addition to the parametric EQ), compressor, and delay. The graphic EQ is particularly useful for room tuning on monitor and PA output mixes, and having it available on every bus means you are never short of system EQ resources.
DEEP Processing and dPack
The DEEP Processing Library
DEEP processing is Allen & Heath’s answer to the question of how to provide plugin-quality processing tools without requiring external hardware or software. The DEEP library consists of modeled processors that replace the standard channel strip compressor or EQ with an emulation of a specific piece of classic hardware. These are not generic models — each DEEP processor has been developed to capture the behavior and character of its hardware inspiration.
The standard SQ firmware includes several DEEP processors. The compressor options include optical compressor and FET limiter models that are genuinely useful in live mixing contexts. The optical compressor model has the smooth, musical compression character associated with LA-2A-style processors, making it an excellent choice for vocals, acoustic guitars, and bass. The FET limiter model provides the aggressive, fast-attack character of a 1176-style compressor, which is effective on drums, electric guitars, and any source that benefits from assertive transient control.
The EQ options include models that offer different frequency curve shapes and harmonic characteristics, allowing you to choose an EQ flavor that suits the source material. Some models emphasize broad, gentle curves suited for tonal shaping, while others provide tighter, more aggressive curves for corrective work.
dPack: Expanding the Processing Palette
The dPack is an optional license (purchased as a one-time firmware unlock code) that significantly expands the DEEP processing library and adds additional effects algorithms. For the SQ-6, the dPack is a strongly recommended upgrade because it provides access to additional compressor models, EQ options, and effects engines that extend the console’s processing versatility.
Among the dPack additions, the multiband compressor models stand out as particularly useful for bus processing applications. Inserting a multiband compressor on a drum subgroup, a music bus, or a main output gives you frequency-selective dynamics control that was previously available only through external processing. Similarly, the additional reverb algorithms in the dPack include several concert hall and room models that are suitable for more sophisticated effects work.
The dPack investment makes the SQ platform competitive with consoles that rely on external plugin platforms like Waves SoundGrid. While the DEEP library may not match the sheer number of processors available in the Waves catalog, the key processors — the compressor models, EQ variants, and effects algorithms — cover the processing needs of most live mixing scenarios. And the advantage of DEEP over external plugins is significant: no additional hardware, no network configuration, no software licensing issues, and guaranteed scene recall reliability.
Eight Stereo Effects Engines
The SQ-6 provides 8 stereo effects engines that can be configured as insert effects or send/return effects. The effects library includes multiple reverb types (hall, plate, room, chamber, ambient), delays (mono, stereo, ping-pong, tape-style), modulation effects (chorus, flanger, phaser), and utility processors (graphic EQ, additional dynamics).
The reverb quality is a significant upgrade from what was available in previous-generation consoles at this price point. The hall and plate reverbs are smooth and dense, with natural-sounding decay characteristics that sit well in a live mix without washing out the direct sound. The tape delay model adds subtle modulation and saturation to the delay repeats, creating a warmer, more organic delay effect than a clean digital delay.
With 8 engines available, you can run dedicated effects for different parts of your mix without any allocation compromises. A typical setup might use two reverb engines for vocals (a short plate and a longer hall), a dedicated snare reverb, a delay for guitar or vocal effects, and still have four engines available for additional processing or specialty effects.
AMM Automatic Mic Mixing
The SQ-6’s AMM (Automatic Mic Mixing) system uses a gain-sharing algorithm to manage multiple open microphones automatically. This feature is most relevant in corporate, conference, and installed sound applications where multiple microphones are live simultaneously — panel discussions, boardroom meetings, worship services with multiple speaking positions, and town hall events.
The gain-sharing approach works by distributing a fixed amount of total gain across all active microphones. When one microphone picks up speech, the algorithm increases gain on that mic while proportionally reducing gain on all others. The result is a consistent total system gain regardless of how many microphones are active, which prevents the feedback buildup and ambient noise issues that occur when multiple microphones are left open at unity gain.
On the SQ-6, AMM can be applied to a selectable group of channels, and each channel in the AMM group can be assigned a priority weight. This priority system is practically important: in a church service, you might assign the pastor’s microphone the highest priority so that it is never attenuated, even when other microphones are active. In a corporate panel discussion, you might assign the moderator’s microphone a higher priority than the panelist microphones.
The hold time and depth parameters let you tune the AMM behavior for different environments. A shorter hold time with deeper attenuation works well for discussion panels where rapid switching between speakers is common. A longer hold time with gentler attenuation works better for situations where multiple speakers might talk simultaneously and you want both voices to remain audible.
I/O and Connectivity
Local I/O
The SQ-6 provides the same local I/O complement as the SQ-5: 16 onboard mic/line inputs with recallable preamps, 12 line outputs, a headphone output, and USB-A and USB-B ports. Some users wish the larger console included additional local I/O, and it is a fair point — the extra chassis space could theoretically accommodate more connectors. But Allen & Heath’s approach is consistent: the SQ models are differentiated by surface size, not by I/O or processing capability.
The 16 onboard preamps are high-quality with wide gain range, recallable gain and phantom power, and the clean, transparent character that Allen & Heath preamps are known for. For applications where all inputs are located near the console — a small corporate event, a podcast studio, or a broadcast application — the local I/O may be sufficient without any additional stage boxes or I/O expanders.
SLink for Stage Box and I/O Expansion
For most live sound applications, the SQ-6 will be paired with one or more SLink-connected stage boxes. The AR2412 (24 inputs, 12 outputs) and AR84 (8 inputs, 4 outputs) remote audio racks provide input/output at the stage position, connected to the console via a single Cat5e or fiber cable carrying bidirectional audio and preamp control data.
The SLink connection is rock-solid in my experience. Across hundreds of shows and installations using SQ consoles with AR stage boxes, I can count the number of SLink connectivity issues on one hand — and in every case, the issue was a damaged cable rather than a protocol or console problem. The system supports cable runs up to 120 meters on Cat5e, which covers the vast majority of venue distances. For longer runs, fiber conversion is available.
The ability to daisy-chain SLink devices means you can start with a single AR2412 and add more I/O over time as your needs grow. A house of worship might start with 24 stage inputs and later add an AR84 for a broadcast split or a separate monitor world I/O rack. This expandability is one of the SQ platform’s strongest selling points for growing organizations.
Option Card Slot
The SQ-6 has a single option card slot that accepts the same range of I/O cards as the SQ-5: Dante (64×64 at 96kHz), Waves SoundGrid, MADI, and additional analog or AES I/O. The card installs in minutes with no tools required, and the console automatically detects and configures the installed card.
For installations where the SQ-6 needs to integrate into a Dante network — feeding audio to a recording system, sharing channels with a broadcast console, or distributing audio to networked amplifiers — the Dante option card is essential. The card provides 64 input and 64 output channels at the full 96kHz sample rate, with routing configured through the console’s touchscreen and Dante Controller software.
The single-slot limitation means you cannot simultaneously run Dante and Waves, or Dante and MADI. For most applications, this is not a practical issue — Dante covers the majority of networking needs. But for production companies that need both Dante connectivity and Waves plugin processing, this forces a choice that competing platforms (like the Yamaha CL/QL with their three expansion slots) do not.
Recording and Virtual Soundcheck
32×32 USB Multitrack Recording
The SQ-6’s 32×32 USB audio interface operates at 96kHz and is class-compliant on macOS, making setup straightforward on Apple hardware. On Windows, Allen & Heath provides ASIO drivers. The recording routing is fully configurable — you can record direct outputs from input channels, pre-fade or post-fade bus outputs, or any combination of sources.
For the SQ-6’s typical use cases, the 32-channel recording capability is substantial. A 24-input worship service can be fully multitracked with channels to spare for recording bus outputs or effects returns. A corporate event with 16 microphones can be recorded with ample headroom for additional channels. The 96kHz recording rate means the captured audio is at a higher resolution than most dedicated recording interfaces offer, which is particularly valuable if the recordings will be used for broadcast, content creation, or high-quality archives.
The virtual soundcheck workflow that 32-channel recording enables is transformative for the SQ-6’s primary use cases. Record Sunday morning’s worship service, then on Tuesday afternoon, play those recordings back through the console and spend an hour refining your mix in an empty room. Experiment with different EQ settings, try new compression approaches, adjust effects levels, and tune the PA system — all without requiring the worship team to be present. For volunteer sound operators who may only get 20 minutes of live soundcheck time before a service, virtual soundcheck is a game-changing training and preparation tool.
Qu-Drive Stereo Recording
Qu-Drive provides simple stereo recording to a USB drive plugged into the console’s USB-A port. This is the set-and-forget recording option for capturing a stereo mix of every service or event without involving a computer. The console writes WAV files to the drive, which can later be transferred to a computer for editing, archiving, or distribution.
While Qu-Drive stereo recording lacks the flexibility of multitrack USB recording, its simplicity has genuine value. In many houses of worship, someone simply plugs in a USB drive before the service and pulls it out afterward. The recording happens automatically, requires no computer, and produces a reliable archive. For organizations that want to distribute audio recordings of services or events, this is a zero-friction solution.
ME Personal Monitoring
The SQ-6’s compatibility with Allen & Heath’s ME personal monitoring system is a significant feature for worship and theater applications. The ME-1 and ME-500 personal mixers connect to the SQ-6 via the SLink port or a network switch, and each musician on stage gets a dedicated hardware unit with physical controls for adjusting their personal monitor mix.
The ME system works on a group concept — the console engineer creates a set of audio groups (drums, bass, guitars, keys, vocals, click, talkback, etc.) and sends them to the ME system. Each musician then has independent control over the level of each group in their personal mix. This decouples monitor mixing from front-of-house mixing, freeing the console operator to focus on the audience experience while musicians manage their own stage sound.
I have found the ME system particularly effective in worship environments that have transitioned from floor wedges to in-ear monitoring. The shift to IEMs creates an immediate demand for more personalized monitor mixes — every musician wants a unique balance, and managing 6 or 8 separate IEM mixes from the front-of-house position is time-consuming and imprecise. The ME system solves this by putting control in the musicians’ hands, and the SQ-6’s generous bus count (36 buses including 12 stereo mixes) provides the infrastructure to feed the ME system with enough discrete audio groups for detailed personal mixing.
Remote Control and System Integration
SQ MixPad and Mixing Station Apps
The SQ MixPad app for iPad provides comprehensive remote control of the SQ-6 over Wi-Fi. The app mirrors the console’s functionality — channel processing, mix sends, effects, scene recall, and system configuration — with an interface that is optimized for touch interaction. Multiple iPads can connect simultaneously, each with configurable access permissions.
For the SQ-6, the MixPad app is less of a necessity than it is on the SQ-5 (where it compensates for the smaller fader count), but it remains a valuable tool. A dedicated stage monitor engineer can use an iPad on stage to manage monitor mixes in real time, responding to musician requests immediately without relaying them to the front-of-house position. In installations where the console is in a control room or booth, the iPad allows the engineer to walk the venue during system tuning and make adjustments from the listening position.
Third-party app Mixing Station also supports the SQ platform and offers an alternative control interface with some features not available in Allen & Heath’s official app, including Android support and additional visualization options. The availability of third-party control apps speaks to the SQ platform’s openness and the strength of its community.
Control System Integration
The SQ-6 supports TCP/IP and MIDI control for integration with third-party automation and control systems. Allen & Heath publishes a comprehensive protocol specification that enables custom control development for Crestron, AMX, Extron, Q-SYS, and other control platforms.
In corporate AV installations, this integration capability is essential. A typical deployment might involve a Crestron touch panel that allows a non-technical user to recall different console scenes for various meeting types (presentation, video conference, board meeting, town hall), adjust the overall room volume, and mute/unmute zones — all without touching the mixing console itself. The SQ-6 responds reliably to TCP/IP commands, and scene recall times are fast enough for seamless transitions between room configurations.
For more complex integrations, the SQ-6’s MIDI capabilities allow synchronization with show control systems, lighting consoles, and media servers. MIDI scene recall can be triggered by timecode, external cue buttons, or automation systems, enabling the SQ-6 to participate in fully automated productions where audio changes are coordinated with other technical elements.
Real-World Applications
Houses of Worship: The SQ-6’s Natural Habitat
If the SQ-5 is popular in houses of worship, the SQ-6 is dominant. The 25-fader layout hits the sweet spot for typical worship audio requirements: enough faders to see an entire band plus speaking microphones and media playback on a single layer, without the size and cost of a full-format console.
A typical SQ-6 worship deployment that I would recommend starts with the console at front-of-house, an AR2412 stage box connected via SLink, a Dante option card feeding audio to a broadcast recording system or livestream encoder, and an ME personal monitoring system for the worship team’s in-ear monitors. This configuration provides 24 remote-controlled stage inputs, 12 stage outputs, 64 channels of Dante networking, and independent personal monitoring for every musician — all managed from a single console that a trained volunteer can operate.
The scene system is heavily used in worship environments. Sunday morning contemporary, Sunday evening traditional, midweek rehearsal, funeral, wedding — each event type gets its own scene or scene range with channel assignments, processing settings, routing, and effects configurations tailored to that specific context. With per-parameter recall filtering, the engineer can control exactly which settings change with each scene recall, preserving channel levels and mix balances that should remain consistent across scenes while updating processing and routing parameters that differ between event types.
Corporate Events and Multi-Purpose Venues
The SQ-6 is an excellent choice for multi-purpose event venues, hotel ballrooms, conference centers, and corporate meeting spaces where the audio system needs to handle a wide variety of event types. A single console can manage a keynote presentation with two wireless microphones and media playback, a panel discussion with eight table microphones and AMM, a gala dinner with a live band and DJ playback, and an awards ceremony with podium microphones, walk-up music, and video playback — each with its own scene and routing configuration.
The AMM auto mixing functionality is particularly valuable in corporate settings. Panel discussions, Q&A sessions, and board meetings involve multiple open microphones that need intelligent management to maintain audio clarity and prevent feedback. The SQ-6’s AMM handles these situations effectively, automatically managing gain distribution across microphone groups without requiring the operator to ride individual faders.
For installations where the SQ-6 is part of a larger AV system, the Dante option card integrates the console into the facility’s networked audio infrastructure. Audio can be shared with DSP systems in adjacent rooms, distributed to zone amplifiers, or fed to recording and broadcast systems — all over the Dante network without additional analog wiring.
Regional Touring and Production Companies
For small to mid-sized production companies and regional touring applications, the SQ-6 offers a compelling combination of capability and portability. The console fits in a standard flight case that two people can load in and out of a vehicle, and it provides enough fader count and processing power to handle the range of events that a regional production company typically encounters.
A common touring rig built around the SQ-6 might include the console in a flight case, an AR2412 stage box, a Dante option card, a laptop for multitrack recording, and cabling. This package covers 24 stage inputs, 12 stage outputs, 32-channel multitrack recording, and Dante connectivity for interfacing with house PA systems or broadcast infrastructure at different venues. The entire system fits in a mid-sized SUV and sets up in under 30 minutes.
The SQ-6’s scene system and library management features support the touring workflow well. Engineers can build and save channel presets, effects settings, and complete show files that travel with them from venue to venue. A visiting engineer can load their personal show file onto a house SQ-6, getting their preferred channel processing, effects configuration, and DCA structure on the house console in seconds.
Theater Productions
Mid-scale theater productions — community theater, high school and college shows, regional repertory companies — are well-served by the SQ-6. A typical community theater musical might use 16 wireless body microphones, 4 area microphones, keyboard/guitar DIs, and sound effects playback — approximately 24-28 input channels with complex scene-based mixing requirements.
The SQ-6’s 25 faders allow the operator to keep the most critical channels — the wireless microphones for principal actors — visible on the top layer while relegating orchestra inputs and utility channels to a secondary layer. DCA groups can be used to create subgroups for ensemble vocals, orchestra sections, and effects that the operator controls during scene changes. The scene management system supports the cue-based workflow that theater mixing requires, with scenes that can be organized by act, scene, and cue number and recalled sequentially during the performance.
The DEEP processing library is particularly useful in theater applications where wireless body microphones often need aggressive processing to manage proximity effect, clothing rustle, body noise, and the generally inconsistent frequency response that results from microphone placement in hair or on costumes. The DEEP compressor models — particularly the optical and FET variants — provide effective dynamics control for these challenging sources, and the parametric EQ is precise enough for the surgical corrections that body microphones often require.
Broadcast and Streaming
While the SQ-6 is not a dedicated broadcast console, it handles broadcast audio duties competently in many contexts. Houses of worship livestreaming their services, corporate events with webcast requirements, and small broadcast studios can all benefit from the SQ-6’s processing quality and routing flexibility.
The Dante option card is essential for broadcast applications, as it allows the SQ-6 to feed audio to recording systems, streaming encoders, and broadcast infrastructure over the network. A separate broadcast mix can be created on one of the SQ-6’s 36 buses, with independent processing and level management from the house PA mix. This broadcast-specific mix can be optimized for the streaming platform’s requirements — different dynamics processing, different EQ balance, and independent effects levels that suit headphone/speaker listening rather than live PA reproduction.
Comparison to Competitors
Yamaha QL1
The Yamaha QL1 is the most direct competitor to the SQ-6 in terms of fader count (16 faders plus a master, though with a much larger surface than the SQ-5) and target market. The QL1 uses Yamaha’s RIVAGE PM-derived processing at 48kHz and offers the Yamaha ecosystem’s deep networking capabilities (including built-in Dante on higher-tier models). The QL1 is a solid console with excellent Yamaha reliability, but it operates at 48kHz and costs significantly more than the SQ-6.
The SQ-6 offers comparable or superior audio quality (thanks to 96kHz processing), a larger fader count (25 vs. the QL1’s 17 accessible faders), and a lower price point. The QL1’s advantages lie in its deep integration with the Yamaha R-series I/O ecosystem and its multi-slot expansion bay that allows simultaneous Dante and Waves connectivity. For users committed to the Yamaha ecosystem, the QL1 makes sense. For users evaluating consoles on their merits, the SQ-6 is a stronger value proposition.
Yamaha TF3
The Yamaha TF3, with its 24 faders, is dimensionally similar to the SQ-6 and targets a similar market. The TF3 prioritizes ease of use with its TouchFlow interface, 1-knob processing, and visual feedback. It is an excellent console for environments where operator simplicity is the top priority — venues with untrained operators, rental companies that need consoles any engineer can walk up to, and installations where the console must be as close to plug-and-play as possible.
The SQ-6 is the more capable console for experienced operators. Its processing is deeper, its routing is more flexible, its audio quality is higher (96kHz vs. 48kHz), and its expansion options (DEEP processing, SLink, option cards) are more extensive. If you are hiring experienced engineers or training dedicated operators, the SQ-6 rewards that expertise with more powerful tools. If you need the simplest possible console for walk-up operation, the TF3 has an argument.
Midas M32
The Midas M32 is a 25-fader console at a significantly lower price point than the SQ-6. It uses the X32 platform’s processing engine at 48kHz, and while it has developed a loyal following, the audio quality and build quality are a step below the SQ-6. The M32’s Midas PRO preamps are good, but the overall signal path — particularly the summing bus and output stage — lacks the refinement of the SQ’s XCVI core.
The M32’s processing suite is capable but does not match the SQ-6’s DEEP library in quality or variety. The M32’s built-in effects are serviceable but feel dated compared to the SQ’s effects engines. And the M32 does not offer the SQ’s 96kHz processing, AMM auto mixing, or ME personal monitoring compatibility.
Where the M32 has a legitimate advantage is in its price and its enormous installed base. The M32/X32 platform is one of the most widely deployed digital mixer platforms in the world, and many engineers are deeply familiar with its workflow. For budget-constrained purchases where the primary requirement is a 25-fader digital console at the lowest possible cost, the M32 delivers remarkable capability for its price. But if the budget allows the SQ-6, the upgrade in audio quality, processing power, and build quality is significant.
PreSonus StudioLive 32SC
The PreSonus StudioLive 32SC offers a subcompact form factor with 16 motorized faders and targets users who value tight DAW integration with PreSonus Studio One. The StudioLive’s dual-console mode (linking two units for a larger surface) and its Fat Channel processing are interesting features, but the overall live sound capability does not match the SQ-6. The StudioLive excels for recording-oriented workflows and users in the PreSonus ecosystem, but for dedicated live sound and installed applications, the SQ-6 is the more professional choice.
Workflow Optimization for the SQ-6
Leverage Both Fader Banks
The SQ-6’s two banks of 12 faders invite a workflow where you dedicate each bank to a different function. One common approach: Bank 1 handles your input channels (your most critical 12 inputs), while Bank 2 handles mix outputs and DCA groups. This dual-bank approach gives you simultaneous access to channels and mixes without layer switching, which is particularly valuable during soundcheck when you are building monitor mixes while refining the house mix.
An alternative approach for worship applications: Bank 1 handles all music channels, Bank 2 handles speech microphones, media playback, and DCA masters. This groups your inputs by function rather than by channel number, keeping related sources physically adjacent on the console surface.
Customize Soft Keys for Your Workflow
Every channel strip on the SQ-6 includes an assignable soft key with an LED indicator. These soft keys can be assigned to a variety of functions — mute, solo, channel select, DCA assignment, or custom actions. Take time to configure these keys for your specific workflow. In a worship context, assigning soft keys to mute functions lets you quickly mute and unmute channels without touching the screen. In a theater context, assigning soft keys to DCA assignment lets you quickly add or remove channels from DCA groups between scenes.
Build Scene Libraries with Intent
The SQ-6’s scene system is powerful but requires thoughtful configuration to be effective. Use scene safes to protect parameters that should never change with a scene recall — typically DCA master levels, main output EQ, and system configuration settings. Use per-scene recall filters to control which parameters each scene affects. Build your scenes in a logical hierarchy — global settings, event type templates, and specific scene variations within each event type.
Use the User Library for Processing Presets
The SQ-6’s user library stores channel processing presets that can be recalled on any channel. Build a library of your go-to processing settings: vocal chain with EQ, compression, and de-esser; snare drum gate and compression; acoustic guitar EQ; lapel microphone processing chain. These presets accelerate setup for new events and ensure consistency across shows. When a guest engineer walks up to your SQ-6, they can load the house processing presets as a starting point.
iPad as a Monitor Engineering Station
While the SQ-6’s 25 faders reduce the need for an iPad as supplementary faders compared to the SQ-5, the MixPad app remains invaluable as a dedicated monitor engineering tool. Set up an iPad on a stand near the stage and use it to manage monitor mixes during soundcheck and performance. The ability to walk to each musician’s position, listen to their monitor mix, and make adjustments from the iPad at that position — rather than from the console 30 meters away — results in better monitor mixes with less back-and-forth communication.
Pros and Cons
Strengths
- Optimal fader count — 25 faders hit the sweet spot for most live sound applications, reducing layer switching while maintaining a manageable console size
- 96kHz XCVI processing — Identical processing engine to the SQ-5 and SQ-7, delivering flagship audio quality at a mid-range price
- DEEP processing library — Built-in plugin-quality processing with no external hardware dependencies
- Versatile I/O expansion — SLink stage boxes, Dante/Waves/MADI option card, and ME personal monitoring provide comprehensive system building options
- Practical portability — Large enough to mix comfortably, small enough to tour and transport without a truck
- Build quality — Professional construction that inspires confidence for both installed and touring applications
- AMM auto mixing — Effective automatic microphone management for corporate and conference applications
- 32×32 USB recording — High-resolution multitrack recording and virtual soundcheck built in
- Strong remote control — Excellent iPad app with multi-device support and configurable permissions
- Ongoing firmware development — Free updates that add features and processing options over time
Weaknesses
- Single option card slot — Cannot simultaneously run Dante and Waves or other I/O combinations that require multiple cards
- 7-inch screen feels proportionally small — On the SQ-6’s wider surface, the screen could benefit from being larger
- Same local I/O as SQ-5 — The larger chassis does not provide additional onboard inputs or outputs
- No built-in Dante — Requires purchasing an option card to join Dante networks, using the only expansion slot
- Weight at the edge of single-person portability — At 20 kg, it can be carried solo but a flight case pushes it into two-person territory
Who Should Buy the SQ-6
The SQ-6 is the right console for users who have outgrown the SQ-5’s fader count but do not need the SQ-7’s full 33-fader layout. It is ideal for mid-sized houses of worship with contemporary bands, corporate event spaces and multi-purpose venues, regional production companies that need a versatile and portable main console, community and regional theater productions, and any application where 24 faders provides enough simultaneous physical control for comfortable mixing.
If your shows consistently use fewer than 16 active channels and rack space is at a premium, the SQ-5 may be the more practical choice. If you routinely mix 30+ channel shows where every channel needs its own fader and layer switching is unacceptable, look at the SQ-7 or step up to the Avantis or dLive platform. But for the broad middle ground of professional mixing — which covers the majority of real-world applications — the SQ-6 is the console that gets the balance right.
Final Verdict
The Allen & Heath SQ-6 is the SQ model I recommend most frequently, and for good reason. It combines the exceptional 96kHz audio quality and DEEP processing of the SQ platform with a 25-fader control surface that is large enough for comfortable, professional mixing and compact enough for practical portability. The processing engine is identical to the SQ-5 and SQ-7, so you sacrifice nothing in sound quality by choosing the mid-size model. What you gain is a significantly improved mixing workflow that reduces layer switching, enables dual-bank operation, and provides enough physical faders for the vast majority of live sound scenarios.
The SQ-6’s versatility is its greatest asset. It is equally at home as a permanent installation in a worship venue, a touring console for a regional production company, or a multi-purpose mixing platform in a corporate event space. The combination of SLink networking, option card expansion, ME monitoring compatibility, 32×32 USB recording, and comprehensive remote control gives it the flexibility to adapt to virtually any professional audio application.
At its price point, the SQ-6 competes with consoles that offer either comparable fader counts with inferior processing (Midas M32) or comparable processing quality at higher prices with fewer faders (Yamaha QL1). The SQ-6 occupies a unique position where it delivers both — a professional control surface and a professional processing engine — at a price that is accessible to mid-market buyers. It is an exceptional console and a benchmark for what a mid-format digital mixer should deliver.
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