ALLEN & HEATH CQ-20B User Manual

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User Guide V1.1.0 Issue 1
15. Specifications
Mic/Line Inputs
Balanced XLR, Balanced XLR/TRS Combi, fully recallable
preamp
Input Sensitivity
-60 to +0dBu
Line Inputs (Combi Sockets)
-20dB Pad (Fixed)
Hi-Z Inputs (CQ-20B 15&16)
Relay switched, 1M Ohm impedance, 0 to +40dB gain
Analogue Gain
0dB to +60dB, 1dB steps
Maximum Input Level
+17dBu (XLR), +30dBu (TRS)
Input Impedance
>1.5kΩ (XLR), >10kΩ (TRS)
THD+N, Unity gain 0dB
0.002% -92dBu (20Hz-20kHz, USB soundcard, @0dBu 1kHz)
THD+N, Mid gain +30dB
0.004% -88dBu (20Hz-20kHz, USB soundcard, @-30dBu 1kHz)
Phantom Power
+48V (+3V / -2V)
Stereo Line Inputs
Stereo Line Input Connection
Balanced, 1/4" TRS Jack, Normalled
Input Sensitivity
Nominal +4dBu
Trim
+/-24dB
Maximum Input Level
+21dBu
Input Impedance
>10kΩ
Outputs
Main LR
Balanced, XLR
Outputs 1-6
Balanced, 1/4" TRS Jack (CQ-18T, CQ-12T), XLR (CQ-20B)
Output Impedance
<75Ω
Nominal Output
+4dBu = 0dB meter reading
Maximum Output Level
+22dBu
Residual Output Noise
-88dBu (muted, 20Hz-20kHz)

ALLEN & HEATH CQ-20B Specifications

General

Frequency range	20 - 20000 Hz
Channels quantity	24 channels
Supported sample rates	96 kHz
Digital sound processing	- bit
Nominal input level	17 dBu
Output impedance	75 Ω
Total Harmonic Distortion (THD)	0.002 %
Built-in display	-
Card reader integrated	Yes
Compatible memory cards	SD, SDHC
Maximum memory card size	32 GB
Bluetooth version	4.1
XLR out	8
RJ-45 ports quantity	1
USB 2.0 ports quantity	2
Number of microphone inputs	20
Rack capacity	19U
USB connector type	USB Type-A, USB Type-B
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (typical)	- W

Weight and Dimensions

Depth	154 mm
Width	372 mm
Height	134 mm
Weight	2600 g
Package type	Box
Package depth	260 mm
Package width	450 mm
Package height	250 mm
Package weight	3300 g