S B - 7 0 4 M A I N S T A T I O N
4 - 1
TECHNICAL
SPECIFICATIONS
SB-704 MAIN STATION
dBu is an absolute measurement. 0 dBu is referenced to 0.775 volts RMS
Panel Microphone Input
Input Type
Electret
Input Impedance
>=2K
Ω
Mic Limiter Threshold
0dBu ±3dB
Mic Limiter Range
>= 15dB
Headset Microphone Input
Input Type
Dynamic
Input Impedance
>= 1K
Ω
Mic Limiter Threshold
0dBu ± 3dB
Mic Limiter Range
>= 15dB
Program Line Input
Maximum Level before Clipping
>= 20dBu
Input Impedance
>= 5K
Ω
Headset Output
Load Impedance
>= 8
Ω
Output Impedance
<= 25
Ω
Output Limiter Threshold
+5dBu ± 3dB
Maximum Output Level before Distortion
>= 17dBu
Speaker Output
Load Impedance
>= 4
Ω
Max Output Level before 1% Distortion
20dBu ± 2dBu
Party Line Output
Off Noise
< -74dBu
Output Impedance
>10K
Ω
Party Line Input
Crosstalk
< -60dB
Max level before Clipping
>= 12dBu
Sidetone Null Capability
> 25dB
Stage Announce/Balanced Line Out
Type
Balanced
Summary of Contents for SB-704
Page 1: ...SB 704 MAIN STATION I N S T R U C T I O N M A N U A L CLEAR COM ENCORE...
Page 18: ...S B 7 0 4 M A I N S T A T I O N 1 1 2...
Page 31: ...S B 7 0 4 M A I N S T A T I O N 2 1 3...
Page 32: ...S B 7 0 4 M A I N S T A T I O N 2 1 4...
Page 34: ...S B 7 0 4 M A I N S T A T I O N 3 2 Figure 3 8 SB 704 Block Diagram...
