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ALLEN & HEATH QU-SB Rackmountable Digital Mixer
The Allen & Heath Qu-SB is an 18-in/14-out rack-mountable, console-less digital mixer that doubles as a 32×32 USB recording interface. Featuring 16 of the company’s recallable AnalogiQ microphone preamps, and powered by a 5-core ARM processor, the Qu-SB provides a variety of integrated effects and processing, including channel-independent 4-band parametric EQs, compressors, delay, and reverb.
The mixer is compatible with both the ME Personal Mixing System and dSNAKE digital connectivity system from Allen & Heath, which allows for up to 38 inputs. The Qu-SB is designed to be used with the Qu-Pad app, allowing you to use your iPad to mix from anywhere in the venue when connected to a wireless network.
Features:
- 16 Mono Inputs (TRS + XLR) 1 Stereo Input (TRS)
- 12 on-board Mix Outputs (LR, Mono Mix 1-4, Stereo Mix 1-3)
- 1 Stereo Matrix Out (TRS)
- Qu-32 Core inside (32 Mono + 3 Stereo Input Channels)
- Up to 11 Monitor Mixes (4 mono + 7 stereo)
- 4 FX Engines, 4 FX Sends/Returns, 4 Mute Groups, 4 DCA Groups
- Recallable AnaLOGIQ Preamps
- iLive FX Library, dSNAKE Remote Audio Port expansion up to 38 inputs
- Automatic Mic Mixer, 32×32 USB Audio Interface
- Qu-Drive direct Multitrack Recording/Playback on USB drives
- Compatible with ME Personal Mixing System
- Qu-Pad iPad App, Qu-You iPhone/Android personal monitoring app
- Trim, polarity, HPF, gate, insert/ducker, 4-band PEQ, compressor and delay on all Inputs
- Insert, 1/3 octave GEQ, 4-band PEQ, compressor and delay on all Mix outputs
- Built-in Signal Generator, RTA with Peak Band indication, 19” Rack Mountable with optional rack ears
Specifications
| Inputs |
| Mic/Line Inputs |
Balanced, XLR and 1/4″ TRS jacks, fully recallable
Input Sensitivity: -60 to +5 dBu / -50 to +15 dBu (XLR / TRS)
Analog Gain: -5 to +60 dB, 1 dB steps
Maximum Input Level: +19 / +29 dBu
Input Impedance: >5 kOhms (XLR), >10 kOhms (TRS)
THD+N, Unity Gain 0 dB: 0.0005%, -89 dBu (20 Hz to 20 kHz, direct out @ 0 dBu, 1 kHz)
THD+N, Mid Gain +30 dB: 0.001%, -83 dBu (20 Hz to 20 kHz, direct out @ 0 dBu, 1 kHz) |
| Stereo Line Inputs |
ST1 Connector: Balanced, 1/4″ (6.3 mm) TRS jacks, half-normalled
Input Sensitivity (ST1): +4 /0 dBu, nominal
Trim: ±24 dB
Maximum Input Level (ST1): +22 /+18 dBu
Input Impedance: >7 kOhms |
| Outputs |
| Line Outputs |
Mix 1 to 10 & LR Out: Balanced XLR
Output Impedance: <75 Ohms
Nominal Output: +4 dBu = 0 dB meter reading
Maximum Output Level: +22 dBu
Residual Output Noise: -90 dBu (muted, 20 Hz to 20 kHz) |
| Stereo Output |
MTX 1-2: Balanced 1/4″ (6.3 mm) TRS jacks
Source (Alt Output/2 Trk Output): Patchable/LR post fade
Output Impedance: <75 Ohms
Nominal Output: +4 dBu = 0 dB meter reading
Maximum Output Level: +22 dBu
Residual Output Noise: -90 dBu (muted, 20 Hz to 20 kHz) |
| dSNAKE |
| Inputs |
Remote source for CH1-32, ST1, ST2, ST3 |
| Outputs |
Patchable from Mix 1-10, LR, Grp 1-8, MTX 1-4
Compatible with AudioRacks AR2412, AR84, AB168
Compatible with ME personal mixing system |
| System |
| Dynamic Range |
112 dB |
| Frequency Response |
20 Hz to 20 kHz (+0/-0.5 dB) |
| Headroom |
+18 dB |
| Operating Level |
Internal Operating Level: 0 dBu |
| Alignment |
dBFS: +18 dBu = 0 dBFS (+22 dBu @ XLR output) |
| Calibration |
Meter Calibration: 0 dB meter = -18 dBFS (+4 dBu @ XLR output) |
| Indicators |
Meter Peak Indication: -3 dBFS (+19 dBu @ XLR out), multi-point sensing
Meter Signal Indication: -48 dBFS (-26 dBu @ XLR out)
Meter Type: Fast (peak) response |
| Sampling Rate |
48 kHz ±100 PPM |
| Converters |
24-bit Delta-Sigma |
| Latency |
1.2 ms (local XLR in to XLR out)
0.7 ms (local XLR in to AES out) |
| Operating Temperature |
32 to 95°F (0 to 35°C) |
| Power |
Mains Power: 100-240 VAC, 50/60 Hz, 150 W maximum |
| USB |
| USB Audio |
Qu-Drive: USB A
Device: Use a USB hard drive (not a USB key)
Stereo Record: 2-channel, WAV, 48 kHz, 24-bit, patchable
Stereo Playback: 2-channel, WAV, 44.1 or 48 kHz, 16- or 24-bit, to ST1
Multitrack Record: 18-channel, WAV, 48 kHz, 24-bit, patchable
Multitrack Playback: 18-channel, WAV, 48 kHz, 24-bit
USB Audio Streaming: USB B, Core Audio compliant
Send (upstream): 32-channel, WAV, 48 kHz, 24-bit
Return (downstream): 32-channel, WAV, 48 kHz, 24-bit |
| Controls |
| Softkeys |
10 |
| Groups |
Mute Groups: 4
DCA Groups: 4 |
| Network |
TCP/IP Ethernet for MIDI commands and iPad app |
| Input Processing |
| Source |
Channels 1 to 32: Local, dSNAKE, or USB
ST1, ST2: Local, dSNAKE, or USB
ST3: Local, dSNAKE, or USB Stereo
USB Global Source: Qu-Drive or USB B Streaming |
| Stereo Linking |
Stereo Linking: Odd/even input pairs
Parameters Linked: EQ, dynamics, insert, delay, assignments, sends
Link Options: Preamp, polarity, sidechains, fader, mute, pan |
| Polarity |
Normal & reverse |
| HPF |
12 dB/octave, 20 Hz to 20 kHz |
| Insert |
Assign FX1-4 into input channels |
| Delay |
Up to 85 ms |
| Gate |
Self-key sidechain
Threshold: -72 to +18 dBu
Depth: 0 to 60 dB
Attack: 50 μs to 300 ms
Hold: 10 ms to 5 s
Release: 10 ms to 1 s |
| Equalizer |
4-band fully parametric, 20 Hz to 20 kHz, +/-15 dB
Band 1: Selectable LF shelving (Baxandall), bell
Band 2 & 3: Bell
Band 4: Selectable HF shelving (Baxandall), bell
Bell Width: Non-constant Q, variable, 1.5 to 1/9 octave |
| Compressor |
Self-key sidechain
Threshold: -46 to 18 dBu
Ratio: 1:1 to infinity
Attack: 300 μs to 300 ms
Release: 100 ms to 2 s
Knee: Soft or Hard
Types: Peak manual, RMS manual, SlowOpto, PunchBag |
| Mix Processing |
| USB Output |
Channel Direct Out to USB: Follow fader, follow mute (global options)
Source Select (Global): Post-preamp, pre-EQ, post-EQ, post-delay |
| Insert |
Assign FX into Mix channels |
| Delay |
Up to 170 ms |
| Equalizer |
Graphic EQ: Constant 1/3 octave, 28 bands from 31 Hz to 16 kHz, +/-12 dB
Parametric EQ: 4-band fully parametric, 20 Hz to 20 kHz, +/- 15 dB
Band 1: Selectable LF shelving (Baxandall), bell
Band 2 & 3: Bell
Band 4: Selectable HF shelving (Baxandall), bell
Bell Width: Non-constant Q, variable, 1.5 to 1/9 octave |
| Compressor |
Self-key sidechain
Threshold: -46 to 18 dBu
Ratio: 1:1 to infinity
Attack: 300 μs to 300 ms
Release: 100 ms to 2 s
Knee: Soft or Hard
Types: Peak manual, RMS manual, SlowOpto, PunchBag |
| Effects |
Internal FX: 4x RackFX engines, Send>Return or Inserted
Types: Reverbs, delays, gated reverbs, ADT, chorus, symphonic chorus, phaser, flanger
4x Dedicated Stereo FX Returns: Fader, pan, mute, routing to Mix/LR, 4-band PEQ |
| Audio Tools |
| PAFL |
PFL or stereo in-place AFL
0 to -24 dB trim
85 ms delay |
| Talkback |
Assignable to any mix
12 dB/octave HPF |
| Signal Generator |
Assignable to any mix
Sine, white, pink, bandpass noise |
| RTA |
31-bands, 1/3 octave 20 Hz to 20 kHz
Follows PAFL source |
| General |
| Dimensions (WxDxH) |
Desk mounted: 17.1 x 6.9 x 6.3″ / 435.5 x 174.5 x 161.0 mm
Rack mounted: 19.0 x 5.3 x 7.0″ / 483.0 x 135.4 x 177.0 mm, 4U |
| Weight |
12.7 lb / 5.8 kg |
| Packaging Info |
| Package Weight |
13.6 lb |
| Box Dimensions (LxWxH) |
21.6 x 10.3 x 10.2″ |
|
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