PA 4000 (serv.man3) - Harman Kardon Audio Info Sheet (repair manual). Page 2

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Specifications
• Continuous Average Power (FTC) – (Eight-Channel
Mode): 8 x 45 watts into 8 ohms @ 20Hz – 20kHz,
<0.07% THD, all channels driven; (Bridge Mode 1): 
2 x 100 watts plus 4 x 45 watts into 8 ohms @ 20Hz
– 20kHz, <0.07% THD, all channels driven; (Bridge
Mode 2): 4 x 100 watts into 8 ohms @ 20Hz –
20kHz, <0.07% THD, all channels driven; High-
Current Capability: ±45 amps; Frequency Response:
<1Hz – 170kHz, ±3dB; Ultrawide Bandwidth @ 1
watt: (+0, –3dB) <1Hz – 200kHz, –3dB @ 1 watt; DC
Supply to Keypad IR Sensor: 12V 10mA 
• Dimensions (H x W x D): 185mm x 442mm x 465mm;
Weight: 21.4kg 
NOTE: Depth measurement includes knobs, buttons 
and terminal connections; height measurement 
includes feet and chassis.
Features
• High-Current (±45 amps), Ultrawide-Bandwidth
Design Effortlessly Powers the Most Dynamic Digital
Sources, Including State-of-the-Art 7.1 Channel
Systems 
• Heavy-Duty Electrical Design Maintains Signal Integrity
Over Long Distances, Enabling Flexible Placement of
Speakers in Remote, Multiroom Locations 
• Low-Impedance Capability Handles Difficult Speaker
Loads Under the Most Demanding Conditions 
• Two Bridge Modes – 2 x 100W, Plus 4 x 45W, or 4 x
100W – Offer the Flexibility of Expanding a Home
Theater System to 7.1 Channels and/or Implementing
a Multiroom, Whole-House Audio System 
• Dual Inputs Allow Two Separate Channel Pairs to be
Used Simultaneously for Remote Zone and Surrround
Sound Applications 
• Parallel Line Level Outputs Allow Cascading of
Multiple Amplifiers for Multiroom, Whole-House
Audio Systems 
• Four Independent Volume Controls for Multiroom
Applications 
• Fanless-Cooling Design for Ultra-Quiet Operation 
• Music Sense Auto-On/Auto-Off Automatically Senses
the Audio Signal, and Efficiently Powers Unit On or
Off Only As Needed 
• Low-Voltage Trigger Jack for Automatic Turn-On
When Used With Compatible Source Components 
• Gold-Plated, 5-Way Binding-Post Speaker Terminals
Accept Speaker Cable up to AWG 12
All features and specifications are subject to change
without notice.
Harman Kardon is a registered trademark, 
and Power for the Digital Revolution is a trademark, 
of Harman Kardon, Inc. 
multiroom capability
parallel outputs
ultrawide bandwidth
auto turn-on
high-current capability
bridgeable
surround channels
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