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ALLEN & HEATH CQ-20B User Manual

ALLEN & HEATH CQ-20B
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61
User Guide V1.1.0 Issue 1
Library Opens the channel library to store or recall all channel settings, including
Name, Colour, Preamp and Processing. Quick and Complete libraries are available.
Name/Colour Change the name and colour for the selected channel.
Gain Assistant Touch Auto Set and generate noise in the microphone or with the
connected instrument/device to automatically set preamp gain based on the level
of signal received at the input. Switch on Auto Gain to automatically reduce the
preamp gain and avoid clipping if high levels are detected.
Phantom Power Touch and hold to activate +48V on the XLR input (Required for
condenser microphones and active DI boxes).
Phantom Power is only provided via an XLR connection. It is not sent to the ¼” TRS
Jack connection of a Combi socket.
Invert Polarity Invert the polarity of the signal. Often used where multiple
microphones are used on the same source (e.g. snare top and snare bottom)
Gain Adjust the gain manually for the incoming signal.
Trim Digital level adjustment, available on stereo line inputs and when an input
source is set to digital (USB/SD).
Gain Assistant, Gain and Phantom Power are only available on Analogue Input
Sources.
Level Displays the post-preamp (pre-processing) input level.

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ALLEN & HEATH CQ-20B Specifications

General IconGeneral
Frequency range20 - 20000 Hz
Channels quantity24 channels
Supported sample rates96 kHz
Digital sound processing- bit
Nominal input level17 dBu
Output impedance75 Ω
Total Harmonic Distortion (THD)0.002 %
Built-in display-
Card reader integratedYes
Compatible memory cardsSD, SDHC
Maximum memory card size32 GB
Bluetooth version4.1
XLR out8
RJ-45 ports quantity1
USB 2.0 ports quantity2
Number of microphone inputs20
Rack capacity19U
USB connector typeUSB Type-A, USB Type-B
AC input voltage100 - 240 V
AC input frequency50 - 60 Hz
Power consumption (typical)- W
Weight and Dimensions IconWeight and Dimensions
Depth154 mm
Width372 mm
Height134 mm
Weight2600 g
Package typeBox
Package depth260 mm
Package width450 mm
Package height250 mm
Package weight3300 g

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