The Allen & Heath SQ-6 is a 48-channel, 36-bus digital mixing console well suited for live sound, corporate A/V, recording studios, and houses of worship. The SQ-6 features 24+1 motorized faders and 24 professional-quality microphone preamps. There are also eight stereo FX engines with dedicated return channels and access to the RackExtra FX library. The mixer’s 12 stereo outputs (configurable as groups or auxes) are well suited for in-ear-monitor setups, while the Auto Mic Mixing function offers quick and easy operation over multiple microphones for conferences, panel talks, and more.
At the heart of the SQ-6 lies the 96 kHz XCVI Core FPGA engine, which delivers professional, high-resolution audio quality, ultra-low latency (less than 0.7 ms), variable bit depth for precision and noise performance, mix coherency down to the sample, and the power to handle high channel / mix counts and ample FX processing. The SQ’s DEEP processing architecture allows you to hand-pick boutique compressor and preamp emulations and embed them directly within the mixer’s inputs and mix channels, all without adding system latency or setup hassles.
Features
- Compact digital mixer for live, studio, and installation
- 48 input channels
- 24 local mic inputs (XLR)
- Two 1/4” stereo inputs (TRS)
- One 1/8″ stereo input
- 36 total busses
- 12 stereo mixes (Aux or Group) + Main
- PAFL bus
- 16 assignable local outputs (14 XLR + two 1/4” TRS)
- AES digital output
- Dedicated talkback mic input (XLR)
- 1/4″ TRS headphone out with dedicated control
- SLink EtherCON connection for remote audio using dSnake, DX, or gigaACE protocol (64×64 channels)
- I/O port for option card (including 3rd party protocols – Dante/Waves)
- 8 mute groups
- 8 DCA groups
- 8 stereo FX with dedicated FX returns
- DEEP processing ready
- RackFX effects suite
- 7″ color touchscreen
- 16 assignable SoftKeys
Specifications
| Number of Analog Input Channels | 48 |
| Mix Routing | 8 x Stereo FX Return |
| Groups | 8 x Mute Group 8 x DCA Group |
| Display | 7″ Touchscreen |
| Display Resolution/Color | Main Display: 800 x 480 8-Bit RGB |
| Faders | x 3.9″ / 100 mm |
| Meters | Main Meter: 2 x 12-Segment LED Channel Meter: Single LED |
| Meter Range | -3 dBFS Peak/Clip (+19 dBu at XLR Output) |
| Meter Calibration | 0 dB on Meter = -18 dBFS (+4 dBu at XLR Output) |
| Gain/Trim Range | Line: ±24 dB (Stereo Channels) Mic/Line: 0 dB to +60 dB (in 1 dB Steps) |
| Input Pad | -20 dB |
| Input Polarity | Normal/Reverse |
| Gate Parameters | Threshold: -72 to +18 dBu Depth: 0 to 60 dB Attack: 50 μs to 300 ms Hold: 10 ms to 5 sec Release: 10 ms to 1 sec |
| Compressor Parameters | Threshold: -46 to +18 dBu Ratio: 1:1 to ∞:1 Attack: 30 μs to 300 ms Release: 50 ms to 2 sec Knee: Soft / Hard Blend: Yes |
| Sidechain Filters | Compressor: High-Pass: 20 to 5 kHz Band-Pass: 120 Hz to 10 kHz Low-Pass: 120 Hz to 20 kHz Gate: High-Pass: 20 Hz to 5 kHz Band-Pass: 120 Hz to 10 kHz Low-Pass: 120 Hz to 20 kHz |
| EQ | FX Returns: 4-Band Parametric |
| EQ Parameters | 1 x HF Shelf: ±15 dB at 20 Hz to 20 kHz (Shelf or Bell Selectable) 2 x MF Notch/Peak: ±15 dB at 20 Hz to 20 kHz 1 x LF Shelf: ±15 dB at 20 Hz to 20 kHz (Shelf or Bell Selectable) |
| Graphic EQ | 28-Band 1/3 Octave, ±12 dB 31 Hz to 16 kHz |
| Filters | High-Pass: 20 Hz to 2 kHz, 12 dB/Octave |
| Channel Output/Source Monitoring | AFL, PFL, Post-Preamp, Post-HPF, Post-Gate, Post-EQ, Post-Compressor, Post-FX, Insert Return |
| Internal Effects | Reverb Stereo Delay (Tap) Reverb (Gated) ADT 2 x Chorus Flanger Phaser |
| Real Time Analyzer | 31-Band 1/3 Octave, 20 Hz to 20 kHz |
| Audio Delay | Adjustable Up to 682 ms |
| Sample Rates | 96 kHz AES3 Output: 44.1 / 48 / 88.2 / 96 kHz Stereo Record: 96 kHz Stereo Playback: 44.1 / 48 / 96 kHz Multitrack Playback/Multitrack Record: 96 kHz |
| Bit Depth | Up to 96-Bit Stereo Record: 24-Bit Stereo Playback: 16 / 24-Bit Multitrack Playback, Multitrack Record: 24-Bit |
| Latency | < 0.7 ms (Mic Input to Main Output) |
| dBFS Reference Level | +18 dBu = 0 dBFS |
| Headroom | +18 dB |
| Frequency Response | 20 Hz to 20 kHz +0/-0.5 dB |
| Max Input Level | Mic/Line Input: +30 dBu Aux Input: +22 dBu (+4 dBu) +18 dBu (0 dBu) |
| Output Level | Analog Output: +4 dBu (Nominal) +22 dBu (Max) |
| Analog Dynamic Range | 112 dB |
| I/O Impedance | 1/4″, XLR Output: < 75 Ohms AES3 Output: 110 Ohms Aux Input: > 7 Kilohms Mic/Line Input: > 5 Kilohms |
| Noise Floor | -90 dBu (with Inputs Muted) |
| THD+N | 0.006% at Unity Gain Mic/Line Input to AES3 Output: 0.002% at Unity Gain 0.003% at +30 dB Gain |
| Signal Generator | Sine, White, Pink, or Band-Pass Noise (Assignable to Any Mix) |
| Analog Inputs | 1 x XLR Talkback Input 24 x XLR Balanced Mic/Line Input 4 x 1/4″ TRS Balanced Aux Input (2 Stereo Pair, Half-Normalled) 1 x 1/8″ / 3.5 mm Unbalanced Aux Input |
| Analog Outputs | 14 x XLR Balanced Output 2 x 1/4″ TRS Balanced Output |
| Phantom Power | +48 V |
| Digital I/O | 1 x RJ45 (Network) 1 x XLR AES3 Output 1 x etherCON (I/O) |
| USB | 1 x USB Type-A (External Memory) 1 x USB Type-B (USB 2.0, Audio Streaming) |
| Expansion Ports | 1 x I/O Card |
| Max Multitrack Recording | 16 Tracks |
| File Format Support | WAV |
| AC Input Power | 100 to 240 VAC, 50 / 60 Hz |
| Operating Temperature | 32 to 104°F / 0 to 40°C |
| Dimensions | 25.1 x 20.3 x 7.8″ / 638 x 514.9 x 198 mm |
| Weight | 29.3 lb / 13.3 kg |
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