Allen & Heath AH-QU-SB Qu-SB Portable 18-In/14-Out Digital Mixer
Allen & Heath AH-QU-SB Qu-SB Portable 18-In/14-Out Digital Mixer
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Allen & Heath AH-QU-SB Qu-SB Portable 18-In/14-Out Digital Mixer
Allen & Heath AH-QU-SB Qu-SB Portable 18-In/14-Out Digital Mixer
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Allen & Heath AH-QU-SB Qu-SB Portable 18-In/14-Out Digital Mixer

Allen & Heath SKU: AH-QU-SB
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Description

Designed to accommodate a wide variety of live-sound reinforcement and recording scenarios, the Allen & Heath Qu-SB is an 18-in/14-out rack-mountable, console-less digital mixer that doubles as a 32x32 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.
  • 16 Mic/Line Inputs
  • 16 Recallable AnalogiQ Preamps
  • 12 Mix Outputs
  • 32x32 USB Recording Interface
  • 4 Built-In FX Engines
  • iPad App for Wireless Mixing
  • EQ & Dynamics on Each Input and Output
  • RTA with Peak Band Indicator
  • Up to 38 Inputs via dSNAKE
Mixer
Number of Analog Input Channels 16
Mix Routing 4x Stereo FX Return
Groups 4x Mute Group
4x DCA Group
Meter Range -48 to -3 dBFS Peak/Clip (+19 dBu at XLR Output)
Meter Calibration 0 dB on Meter = -18 dBFS (+4 dBu at XLR Output)
Signal Processing
Gain/Trim Range Line:
±24 dB (Stereo Channels)
Mic/Line:
-5 dB to +60 dB (in 1 dB Steps)
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: 300 μs to 300 ms
Release: 100 ms to 2 sec
Knee: Soft / Hard
EQ FX Returns:
4-Band Parametric
EQ Parameters 1x HF Shelf:
±15 dB at 20 Hz to 20 kHz (Shelf or Bell Selectable)
2x MF Notch/Peak:
±15 dB at 20 Hz to 20 kHz
1x 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 20 kHz, 12 dB/Octave
Channel Output/Source Monitoring AFL, PFL, Post-Preamp, Post-EQ, Post-FX
Built-In Effects Reverb
Delay
Reverb (Gated)
ADT
Chorus
Phaser
Flanger
Real Time Analyzer 31-Band 1/3 Octave, 20 Hz to 20 kHz
Audio Delay Adjustable Up to 170 ms
Digital Audio
Sample Rates 48 kHz
Stereo Record:
48 kHz
Stereo Playback:
44.1 / 48 kHz
Multitrack Record:
48 kHz
Multitrack Playback:
48 kHz
Bit Depth AD/DA Conversion:
24-Bit Delta Sigma
Stereo Record:
24-Bit
Stereo Playback:
16 / 24-Bit
Multitrack Record:
24-Bit
Multitrack Playback:
24-Bit
Latency 1.2 ms (Mic Input to XLR Output)
0.7 ms (Mic Input to AES Output)
Performance
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 Input:
+19 dBu
Line Input:
+29 dBu
Aux Input:
+22 dBu (+4 dBu)
+18 dBu (0 dBu)
Output Level Aux Output:
+22 dBu (2901653168)
+4 dBu (2901653169)
Line Output:
+22 dBu (2901653168)
+4 dBu (2901653169)
Analog Dynamic Range 112 dB
I/O Impedance Aux Input:
> 7 Kilohms
Aux Output:
< 75 Ohms
XLR Line Output:
< 75 Ohms
XLR Mic/Line Input:
> 5 Kilohms
1/4" Mic/Line Input:
> 10 Kilohms
Noise Floor -90 dBu (with Inputs Muted)
THD+N Mic/Line Input:
0.0005% at Unity Gain
0.001% at +30 dB Gain
Signal Generator Sine, White, Pink, or Band-Pass Noise (Assignable to Any Mix)
Connectivity
Analog Inputs 1x XLR Talkback Input
16x XLR Balanced Mic Input
16x 1/4" TRS Balanced Line Input
2x 1/4" TRS Balanced Aux Input (1 Stereo Pair, Half-Normalled)
Analog Outputs 10x XLR Balanced Mix Output
2x XLR Balanced Main Output
2x 1/4" TRS Balanced Output (1 Stereo Pair)
Digital I/O 1x RJ45 (Network)
1x etherCON dSNAKE (I/O)
USB I/O 1x USB-A (External Memory)
1x USB-B 2.0 (Audio Streaming)
Recording
Max Multitrack Recording 18 Tracks
Power
Input Power 100 to 240 VAC, 50 / 60 Hz
Power Consumption 150 W (Maximum)
Physical
Rackmount Size 4 RU
Operating Temperature 32 to 95°F / 0 to 35°C
Dimensions 17.1 x 6.9 x 6.3" / 435.5 x 174.5 x 161 mm (Desk-Mounted)
19 x 5.3 x 7" / 483 x 135.4 x 177 mm (Rack-Mounted)
Weight 12.7 lb / 5.8 kg

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