AVR 645 - Harman Kardon Audio Service Manual (repair manual). Page 4

TECHNICAL SPECIFICATIONS

Audio Section
Stereo Mode 
Continuous Average Power (FTC)

90 Watts per channel, 20Hz–20kHz,
@ < 0.07% THD, both channels driven into 8 ohms

5/7 Channel Surround Modes 
Power Per Individual Channel

Front L&R channels:
75 Watts per channel,
@ < 0.07% THD, 20Hz–20kHz into 8 ohms

Center channel:
75 Watts, @ < 0.07% THD, 20Hz–20kHz into 8 ohms

Surround (L & R Side, L & R Back) channels:
75 Watts per channel,
@ < 0.07% THD, 20Hz–20kHz into 8 ohms

Input Sensitivity/Impedance 

Linear (High Level)

200mV/47kohms

Signal-to-Noise Ratio (IHF-A)

95dB

Surround System Adjacent Channel Separation 

Analog Decoding 

40dB 

(Pro Logic, etc.) 
Dolby Digital (AC-3) 

55dB 

DTS

55dB

Frequency Response 

@ 1W (+0dB, –3dB)

10Hz–130kHz

High Instantaneous 
Current Capability (HCC)

±50 Amps

Transient Intermodulation 
Distortion (TIM)

Unmeasurable

Rise Time

16 µsec

Slew Rate

40V/µsec**

Frequency Range

87.5–108MHz

Usable Sensitivity

IHF 1.3 µV/13.2dBf

Signal-to-Noise Ratio

Mono/Stereo: 70/68dB (DIN)

Distortion

Mono/Stereo: 0.15/0.2%

Stereo Separation

40dB @ 1kHz

Selectivity

±400kHz: 70dB

Image Rejection

80dB

IF Rejection

90dB

Frequency Range

520–1710kHz

Signal-to-Noise Ratio

45dB

Usable Sensitivity

Loop: 500µV

Distortion

1kHz, 50% Mod: 0.8%

Selectivity

±10kHz: 30dB

Video Format

PAL/NTSC

Input Level/Impedance

1Vp-p/75 ohms

Output Level/Impedance

1Vp-p/75 ohms

Video Frequency Response
(Composite and S-Video)

10Hz–8MHz (–3dB)

Video Frequency 
Response (Component)

10Hz-50MHz (-3dB)

HDMI Version 1.1

Power Requirement

AC 220-240V/50Hz

Power Consumption

120W idle, 1180W maximum 
(7 channels driven) 

Dimensions (Max)

Width

440mm 

Height

165mm 

Depth

435mm 

Weight

19.9 kg

Depth measurement includes knobs, buttons and terminal connections. Height measurement
includes feet and chassis. All features and specifications are subject to change without notice.
Harman Kardon and Power for the Digital Revolution are registered trademarks of 
Harman International Industries, Incorporated.

and 

are trademarks of Harman International Industries, Incorporated.

(Patent No. 5,386,478).
*Manufactured under license from Dolby Laboratories.
“Dolby,” “Pro Logic,” “Pro Logic II,” "Pro Logix IIx" and the Double-D symbol are trademarks of
Dolby Laboratories. Confidential Unpublished Works. ©1992–1999 Dolby Laboratories, Inc.
All rights reserved.
DTS and DTS Surround, DTS-ES and DTS Neo:6 are trademarks of Digital Theater Systems, Inc.
Logic 7 is a registered trademark of Harman International Industries, Incorporated.
A-BUS and A-BUS/

READY

®

Ready are registered trademarks of Leisure Tech Electronics Pty Ltd

Australia.
TiVo is a registered trademark of TiVo, Inc.
SACD is a trademark of Sony Corporation.
iPod is a registered trademark of Apple Computer, Inc.
DLP and Texas Instruments are trademarks of Texas Instruments.
HD-DVD is a trademark of the DVD Format/Logo Licensing Corporation (DVD FLLC).
HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered
trademarks of HDMI Licensing, LLC.
Microsoft, Windows and Windows Media are registered trademarks of Microsoft Corporation in
the United States and other countries.
**Without input anti slewing and output isolation networks.

 The 

 Bridge 

29851_AVR645_ENG  30/10/06  9:46  Side 67

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