ALLEN & HEATH CQ-20B User Manual

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User Guide V1.1.0 Issue 1
INPUT / Gate
A Gate allows wanted signal through and attenuates unwanted signal. It has many
uses including removal of hum from an idle instrument or avoiding hearing the
snare drum through a tom microphone when only the snare is being played.
Attack – Adjust time it takes for the Gate to open once signal has reached
threshold.
Hold – Adjust time the Gate remains open after signal has dropped below
threshold.
Release – Adjust time it takes for the Gate to fully close once signal has fallen
under the threshold and hold time has expired.
Threshold – Adjust the level at which the Gate is triggered to open.
Depth – Adjust the amount the signal is reduced by when the gate is fully closed.
In/Out – Enable or disable the Gate.

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