ALLEN & HEATH CQ-20B User Manual

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User Guide V1.1.0 Issue 1
Send Audio to and from a DAW
CQ can send and receive multichannel audio with a built-in audio interface that
connects to a computer or device via USB-B. The maximum number of channels
that can be sent and received are:
CQ-12T: 16×16 (48/96kHz)
CQ-18T: 24×22 (48/96kHz)
CQ-20B: 24×24 (48/96kHz)
For capture and playback of an event, or for virtual soundcheck, signal is generally
only sent or received at any time. In a studio environment however, sending and
receiving signal at the same time is often required. This guide describes sending
and receiving separately. For bidirectional use, simply ensure that audio is being
sent from the DAW to the CQ using different channels than those being used to
send audio from the CQ to the DAW.
 CQ mixers are Core Audio compliant so no driver is required; for lower latency
connection with Windows systems, download and install the required ASIO driver from
the A&H website: https://www.allen-heath.com/cq.
Send Audio from the CQ to a DAW:
1.
Connect the CQ to the computer or device
using a standard USB-B cable.
2.
Go to CONFIG / Digital Audio (Symbols) /
USB/SD to set up the connection.
3.
Select a point in the signal path of an Input
channel to record from using Source Point

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