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2 CM-CU21 Technical Specification
CM-CU21 Technical Specification
Microphone Input
Gain Range:
+20dB to +86dB.
Maximum Input Level: -6dBu.
Equivalent Input Noise: 130dB Ref. 80dB gain with 150Ω termination.
Equivalent Input Noise: 128dB Ref. 50dB gain with 150Ω termination.
C.M.R.R.: >60dB.
Frequency Response:
±0.5dB 20Hz to 22kHz Ref 50dB gain @ 1kHz.
Electronically Balanced Line Input
Gain Range:
-83dB to +10dB.
Maximum Input Level: +25dBu.
C.M.R.R.: >70dB.
Frequency Response:
±0.2dB 20Hz to 22kHz Ref 0dB @ 1kHz.
Transformer Balanced Monitor Inputs
Gain Range:
-70dB to +7dB measured @ Headphone output.
Maximum Input Level: +25dBu.
C.M.R.R.: >60dB.
Frequency Response:
±0.5dB 20Hz to 22kHz Ref 0dB @ 1kHz.
Transformer Balanced Main Outputs
Maximum Output Level +24dBu.
(limiter off):
Frequency Response:
±0.5dB 20Hz to 22kHz Ref 0dB @ 1kHz.
Noise:
-94dB Average weighting Ref +8dB Line input.
THD & N:
<0.02% Ref. 1kHz @ +8dBu.
THD & N:
<0.065% Ref. 1kHz @ +18dBu.
1% Distortion Point:
+18dBu @ 24Hz.
Transformer Balanced Talkback Outputs
Maximum Output
+8dBu.
Level Limited:
Frequency Response:
±0.5dB 20Hz to 22kHz Ref 0dB @ 1kHz.
Noise:
-94dB Average weighting Ref +8dB Line input.
THD & N:
<0.02% Ref. 1kHz @ +8dBu.
Gain Adjustment:
0-12dB
Electronically Balanced Comm Outputs
Maximum Output
Level Limited:
+25dBu.
Frequency Response:
±0.2dB 20Hz to 22kHz Ref 0dB @ 1kHz.
Noise:
-98dB Average weighting Ref +8dB Line input.
THD & N:
<0.002% Ref. 1kHz @ +8dBu.
Headphone Outputs
Gain Range:
-66dB to +11dB.
Maximum Output Level: +19dBu.
Frequency Response:
±0.5dB 20Hz to 22kHz Ref 0dB @ 1kHz.
Noise:
-85dB Average weighting Ref +8dB Line input.
THD & N:
<0.005% Ref. 1kHz @ +8dBu.
Main Panel Operational Controls & Indicators
On-Air 1-3 Buttons:
Illuminated buttons with latching action
Talkback A & B
Illuminated buttons with selectable momentary
Buttons:
and/or latching action
Headphone Monitor
Input source level adjustment potentiometers
Controls:
Headphone channel selection switches
Line Input Level:
Guest line input mode level potentiometer
