ALLEN & HEATH CQ-20B

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User Guide V1.1.0 Issue 1
System
Measured balanced XLR in to XLR out, 0dB gain, 0dBu input
Dynamic Range
110 dB
Frequency Response
+0/-0.5dB 20Hz to 20kHz
Headroom
+18dB
Internal operating Level
0dBu
THD+N, Mic routed to Main L/R Out
+10dBu input, 0dB system gain, 0.003%, -92dB (Relative, 20-
20kHz)
dBFS Alignment
+18dBu = 0dBFS (+22dBu at XLR output)
Meter Calibration
0dB meter = -18dBFS (+4dBu at XLR out)
Sampling Rate
96kHz
Bit Depth
Uses XCVI core custom bit widths in algorithms, up to 96bits
Latency
<0.7mS, Local Mic Input to Main L/R, with all processing in or
out
Operating Temperature Range
0°C to 40°C (32°F to 104°F)
Wi-Fi Access Point
802.11 a/b/g/n/ac (dual band, auto channel)
Bluetooth
4.1
USB-A
Stereo Record
48/96 kHz, 24 bit WAV format. Patchable from Outputs, ST in,
or FX Units
Stereo Playback
44.1/48/96 kHz, 16/24 bit, Mono/Stereo WAV files.
USB-B
USB 2.0, Core Audio compliant, ASIO/WDM for Windows, 48/96
kHz , 24 bit
Send (upstream)
CQ-12T 16 channels, CQ-18T and CQ-20B 24 channels
Return (downstream)
CQ-12T 16 channels, CQ-18T and CQ-20B 24 channels*
SD Card
SDHC, 32 GB, UHS-I Speed class 10 for maximum channels
Multitrack Record (Max)
16 channels @ 96kHz or
24 channels @ 48 kHz (CQ-18T, CQ-20B)
Multitrack Playback (Max)
16 channels @ 96kHz or
22 channels (CQ-18T), 24 channels (CQ-20B) @ 48 kHz