ALLEN & HEATH CQ-18T User Manual

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User Guide V1.1.0 Issue 1
AMM (Auto Mic Mixer)
CQ’s Automatic Microphone Mixer uses a gain sharing algorithm, designed for use
in multi-microphone speech applications like conferences, meetings, broadcasting
and podcasts. It can be used on every mono input channel of the CQ with two
banks shown at the top of the page.
The AMM algorithm looks at the incoming signal level, the priority setting and
(optionally) the fader level, then adds gain (level) to any channel in use, while
reducing gain on the other channels. This reduces background noise and the
chance of feedback while improving intelligibility.
In/Out – Switch the whole AMM on or off.
On/Off – Enable or disable AMM on each channel individually.
Priority Faders – Adjust priority of each channel in the calculation.
Follow Fader – When on, the calculation considers the input send level to Main LR.

ALLEN & HEATH CQ-18T Specifications

General

Frequency range	20 - 20000 Hz
Channels quantity	18 channels
Supported sample rates	96 kHz
Digital sound processing	- bit
Phantom power	48 V
AC input voltage	100 - 240 V
AC input frequency	50/60 Hz
Power consumption (typical)	35 W
Output impedance	75 Ω
Built-in display	Yes
Compatible memory cards	SD, SDHC
Master (XLR) out	2
Number of microphone inputs	18
Video capability	-
USB connector type	USB Type-A, USB Type-B

Weight and Dimensions

Depth	242 mm
Width	346 mm
Height	89 mm
Weight	3000 g
Package depth	310 mm
Package width	430 mm
Package height	200 mm
Package weight	3800 g