Clear-Com KB-701 - Manual (Page 19)

K B - 7 0 1 S P E A K E R S T A T I O N 4 - 1
TECHNICAL
SPECIFICATIONS
KB-701 SPEAKER STATION
dBu is an absolute measurement. 0 dBu is referenced to 0.775 volts RMS
Program Line Input
Maximum Level before Clipping >= 20dBu
Input Impedance >= 5K Ω
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
Frequency Response
Program Input - Speaker Out 200 - 18KHz ± 3dB
Party Line - Speaker Out 200 - 18KHz ± 3dB
Max Distortion
Program Input - Speaker Out <= 0.5%
Party Line - Speaker Out <= 0.5%
Noise
Program Input - Speaker Out < -60dBu
Party Line - Speaker Out < -50dBu
Max Gain
Program Input - Speaker Out >= 24dB
Party Line - Speaker Out >= 40dB
Power
Input Voltage Range 20-30 VDC
Input Current (Idle) <= 90mA
Input Current (Max) <=110mA