06/29/17 ICA-202D OPERATION AND INSTALLATION MANUAL Page 6 of 32
Specifications
General:
Dual Channel Universal Audio Intercom Amplifier
Inputs: R.F. and static electricity protected
Outputs: short circuit protected
Frequency Response: 250 Hz to 10 KHz
20-Watts RMS Sine Wave output, 25 Volts (Balanced)
Distortion at full voltage output < 1% T.H.D.
Power Supply Required: 24 Volts DC @ 2.2 Amps for full rated output
Unit is intended to use with class 2 power source
Operator Microphone/Line Universal Input:
2000 Ohms Balanced
As Microphone -70dBm minimum input for full rated output
Selectable Equalization, 3 settings optimized for voice communication
Phantom Power, short circuit protected (23 Volts, Current limited @ 9 MA)
As Line Input, -25dBm to + 20dBm
Remote Microphone (Also used as the Remote Speaker) Input:
1000 Ohms Balanced
-80dBm minimum input for full rated output
Selectable Equalization, 3 settings optimized for voice communication
Operator Speaker Output:
Balanced
25-Volts, Built out with 66 Ohms
Operator Speaker, 2.25-Watts @ 45 Ohms
Or 25-Volt Speaker tapped at ~2 Watts (See page 15)
Remote Speaker Output:
Balanced
25-Volts, 20-Watts (Maximum)
Automatic Level Control:
Operator and Remote
Greater then 40dB Automatic level accommodation
Fast Attack, <10 mS
Feed Forward Control, no ‘Pumping’
Adjustable 'Reach' (Sensitivity)
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