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Studer D21m
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D21m System
6-2 D21m Modules Date printed: 25.09.07
6.2 Analog I/O Cards
6.2.1 Mic/Line In Card ( and ) 1.949.427
Four analog microphone/line inputs, electronically balanced, with 24 bit,
44.1/48/88.2/96 kHz delta-sigma A/D converters (mic/line sensitivity, gain
setting in 1 dB steps, low-cut lter, soft clipping and 48 V phantom power on/
off controlled by console software); four analog split outputs, electronically
balanced. Green “signal present” and yellow “phantom power” indicators
per channel. Inputs and split outputs on standard 25-pin D-type connector
(female).
Input sensitivity (for 0 dB
FS
) –60…+26 dBu
Input impedance 1.8 k
Split out gain (input sensitivity –60…+3 dBu) 0 dB
(input sensitivity +4…+26 dBu) –20 dB
Split out impedance 50
Equivalent input noise (R
i
200 , max. gain) –124 dBu
Crosstalk (1 kHz) < –110 dB
Frequency response (30 Hz...20 kHz) –0.2 dB
THD&N (35 Hz...20 kHz, –1 dB
FS
, min. gain) < –97 dB
FS
(1 kHz, –30 dB
FS
, min. gain) < –111 dB
FS
(input level 6 dBu, min. gain) < –107 dB
FS
CMRR (30 Hz...20 kHz, all gain settings) > 55 dB
(1 kHz, input sensitivity –10...+26 dBu for 0 dB
FS
) typ. 100 dB
Low-cut lter 75 Hz / 12 dB/oct.
Input delay (local) 38 samples (0.79 ms @ 48 kHz)
(remote) 45 samples (0.94 ms @ 48 kHz)
Current consumption (7 V) 0.2 A
(±15 V) 0.25 A
Operating temperature 0...40° C
Backplane Connector
Mic/Line In 1
A
D
48 V Phantom Pwr
0 dB*
–20 dB*
A
D
0 dB*
–20 dB*
0 dB*
–20 dB*
0 dB*
–20 dB*
* 0 dB for input sensitivity –60...+3 dBu, –20 dB for input sensitivity +4...+26 dBu
Mic/Line In 2
Mic/Line In 3
Mic/Line In 4
Split out 1
Split out 2
Split out 3
Split out 4
Control Logic
Sensitivity
–60...+26 dBu
INS
INS
INS
INS
Insert Connector
Sensitivity Control
High-Pass Filter Insert Control

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Studer D21m Specifications

General IconGeneral
BrandStuder
ModelD21m
CategoryRecording Equipment
LanguageEnglish

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