880 Series Audio Distribution Amplifiers Instruction Manual
53
Chapter 14: Specifications
Preliminary—Contents are proprietary and confidential. Do not photocopy or distribute.
ADA-882 Stereo Audio Distribution Amplifier
Module (Low Impedance – 66
Ω)
Input
Output
Performance
Table 14-14.
ADA-882 (66
Ω
Impedance) Input Specifications
Item
Specification
Impedance
> 30 k
Ω
, balanced
Max. level
+30 dBu
Common mode range
± 20 volts
Common mode rejection
> 90 dB @ 60 Hz
> 60 dB @ 20 kHz
Table 14-15.
ADA-882 (66
Ω
Impedance) Output Specifications
Item
Specification
Channels
2
Outputs per channel
4
Impedance
66
Ω
balanced
Max. level
+30 dBu
Output to output isolation
> 70 dB 20 Hz to 20 kHz
Table 14-16.
ADA-882 (66
Ω
Impedance) Performance Specifications
Item
Specification
Gain range
– 6 to +33 dB
(±6 dB on 18-turn pot, 0, +9, +18, +27 dB
on jumper)
S/N ratio
>100 dB @ unity gain 20 Hz – 20 kHz,
relative to +8 dBu signal, unweighted
Frequency response
< ± 0.05 dB 20 Hz – 20 kHz, rel. to 1
kHz, any level up to +30 dBu
Total harmonic distortion
< 0.05%, 20 Hz – 20 kHz @ +30 dBu
Intermodulation distortion
< 0.02% SMPTE @ +18 dBu
Isolation between modules
>100 dB, 20 Hz – 20 kHz
Interchannel crosstalk
> 95 dB, 20 Hz – 20 kHz
Temperature range
41° – 104° F (5°– 40° C)
