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Harman Kardon PA 4000 Multiroom Multichannel Power Amplifier

Thanks to four bridgeable high-current amplifier pairs (a total of eight 45-watt channels) and two separate inputs, the PA 4000 is suited to a wide range of applications. Power two separate zones, or the back channels of a home theater and a remote zone simultaneously with ease, while a variety of power control options such as Music Sense and a low-voltage trigger make operation a breeze. For the ultimate in control, the KP 1 keypads may be used for remote power on/off and volume control, with the added capability of using an optional IR sensor for total system control.

Specification
Power Output, Normal Mode : 8 x 45 Watts @ 8 ohms, 20Hz – 20kHz, <0.07% THD, all channels driven
Power Output, Bridged Mode : (Bridged Mode 1): 2 x 100 Watts plus 4 x 45 watts @ 8 ohms, 20Hz – 20kHz, <0.07% THD, all channels driven
(Bridged Mode 2): 4 x 100 Watts @ 8 ohms, 20Hz – 20kHz, <0.07% THD, all channels driven
High Instantaneous Current Capability (HCC) : ±45 Amps
Frequency Response : <1Hz – 200kHz, ±3dB at 1 watt
Signal-to-Noise Ratio : 110dB at rated power 45 watts
THD/IMD : Less than 0.07% at rated output
Input Impedance : 47K ohms
Input Sensitivity : 1 Volt for rated output
Remote Trigger Voltage : 3 – 30 Volts AC/DC
Remote Trigger Impedance : 20K Ohms
Keypad IR Sensor DC Supply : 12V, 10mA
Dimensions
(H x W x D) : 7-5/16" x 17-3/8" x 18-5/16" (185mm x 442mm x 465mm)
Weight : 47 lb (21.4kg)
Power Requirement : AC 120V/50Hz – 60Hz
Power Consumption : 520 Watts maximum