Power

CQ-12T, CQ-18T

12VDC, 5A, centre positive connection and clip. Use supplied external switching power supply with IEC connection to mains.

CQ-20B

IEC connection with internal switch mode power supply.

Mic/Line Inputs

Mono Inputs 1-5 (CQ-12T) and 1-8 (CQ-18T, CQ-20B)

Balanced XLR (1-Ground, 2-Hot/Positive, 3-Cold/Negative), recallable preamp with +60dB gain and phantom power.

Mono Inputs 6-10 (CQ-12T) and 9-16 (CQ-18T, CQ-20B)

Balanced XLR (1-Ground, 2-Hot/Positive, 3-Cold/Negative)

Or ¼” TRS Jack (Tip-Hot/Positive, Ring-Cold/Negative, Sleeve-Ground)

Mono Inputs 15-16 (CQ-20B) - switched to Hi-Z mode

¼” TS Jack (Tip-Hot/Positive, Sleeve-Ground)

Mono inputs include recallable preamp with +60dB gain, fixed -20dB pad on TRS input, phantom power supplied to XLR connection only.

Stereo Line Inputs

2x ¼” TRS Jack (Tip-Hot/Positive, Ring-Cold/Negative, Sleeve-Ground)

Stereo input connections are normalled (L/M, R), connect mono signals to left socket only. Digital trim control available in processing channel.

Outputs

Main LR

Balanced XLR (1-Ground, 2-Hot/Positive, 3-Cold/Negative)

Nominal +4dBu output (when output meter displays 0dB)

Out 1-6 (CQ-12T, CQ-18T)

Balanced ¼” TRS Jack (Tip-Hot/Positive, Ring-Cold/Negative, Sleeve-Ground)

Nominal +4dBu output (when output meter displays 0dB)

Out 1-6 (CQ-20B)

Balanced XLR (Pin1-Ground, Pin2-Hot/Positive, Pin3-Cold/Negative)

Nominal +4dBu output (when output meter displays 0dB)

ALT OUT (CQ-20B)

Balanced ¼” TRS Jack (Tip-Hot/Positive, Ring-Cold/Negative, Sleeve-Ground)

Nominal +4dBu output (when output meter displays 0dB)

ⓘ ALT OUT sockets A and/or B are individually assignable and can duplicate any other output.

Headphone/s

Stereo ¼” TRS Jack (Tip-Left, Ring-Right, Sleeve-Ground)

Recallable digital trim control.

Footswitch

Mono (TS) or Dual (TRS) ¼” Jack

Can be calibrated for use with momentary or latching switches.

USB and SD Card

USB-A (CQ as host, for audio and data storage and recall)
USB-B (CQ as client, for audio and MIDI).
Conforms to USB 2.0 standard. Class compliant USB-B interface.

Full size SD card slot. Use SDHC, Up to 32GB, UHS-I, Class 10.

Network Port

RJ45, Fast Ethernet. For network control messaging only.

Built-In WiFi Access Point (CQ-18T, CQ-20B)

Dual band (2.4GHz or 5GHz), Auto Channel sensing. For network control messaging only.

Bluetooth

Bluetooth 4.1 for high quality stereo audio playback.

MIDI

CQ sends and receives MIDI via USB-B or Network connection.

For full details, refer to the CQ MIDI Protocol document, available to download from https://www.allen-heath.com/resources/