Allen & Heath CQ-20B Ultracompact 20-Channel Digital Mixer (Rackmount/Stagebox) - Manual (Page 13)

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13 User Guide
V1.1.0 Issue 1
4. Connections
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.
1. 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.