Introduction
Thank you for choosing Harman Kardon! With the purchase of a Harman Kardon AVR 645 you are about to begin many years of listening enjoyment.
The AVR 645 has the most extensive range of audio and video processing, control and connec- tivity options ever offered by Harman Kardon, enabling it to provide the best possible audio and video reproduction with any type of source material. Teaming advanced processing circuitry with proprietary technologies such as EzSet/EQ, the AVR 645 seamlessly integrates every compo- nent in your entertainment system to deliver the best possible sound and images.
Some of the leading-edge features that are available with the AVR 645, such as HDMI™ connectivity, are new to even the most experi- enced home theater enthusiast.
To obtain the maximum enjoyment from your new receiver, we urge you to read this manual. A few minutes spent learning the functions of the various controls will enable you to take advantage of all the power the AVR is able to deliver.
If you have any questions about this product, its installation or its operation, please contact your retailer or custom installer. They are your best local sources of information.
Description and Features
The AVR 645 serves as the hub of your home entertainment system, providing a wide range of listening possibilities for almost any audio or video program source, whether it is the broad- cast of a movie or sporting event in HDTV or a vintage mono or stereo recording. When playing digital audio sources from either the convention- al optical and coaxial inputs, or through the HDMI 1.1 compliant connections, the AVR 645 decodes Dolby Digital, Dolby Digital EX, DTS and DTS-ES data streams. Two-channel stereo and matrix surround sources benefit from all current Dolby Pro Logic IIx modes and DTS Neo:6. The latest version of our proprietary Logic 7® process is on-board to create a wider, more enveloping sound field and more defined surround channel positioning, regardless of the type of source material. Additional audio playback and processing options include a direct connection to compatible computer-based sources through a direct USB connection.
The AVR 645 takes the “video” part of its name seriously. Along with two HDMI inputs and three 100MHz analog component video inputs, the AVR 645 converts incoming analog signals to an HDMI output or converts composite and S-video to component for single wire connections. Tying audio and video together, the AVR 645 provides A/V sync delay so that the lip sync errors – com- monly seen when digital video processing is used in a source, program or video display – are eliminated.
Coax and optical digital outputs are available for direct connection to digital recorders, and both the front panel analog audio/video and coaxial digital jacks may be switched to outputs for use with portable recorders – a Harman Kardon exclusive. Two video recording outputs, preamp- out and a color-coded eight-channel input make the AVR virtually future-proof, with everything needed to accommodate tomorrow’s new for- mats right on board.
The AVR 645’s flexibility and power extend beyond your main home theater or listening room. The AVR includes a sophisticated multi- zone control system that allows you to select one source for use in the main room and a different one (Audio) in a second room. Complete control over volume is possible with a separate infrared control link. To make it easy to operate the AVR from a remote room, a separate “ZR 10” remote is included.
Additional multiroom options include the option to assign two of the AVR’s output channels to the multiroom system and the ability to link the AVR to innovative A-BUS®keypads for multiroom oper- ation without the need for external amplifiers.
The AVR 645’s powerful amplifier uses traditional Harman Kardon high-current design technologies to meet the wide dynamic range of any program selection.
Harman Kardon invented the high-fidelity receiver more than fifty years ago. With state-of- the-art circuitry and time-honored circuit designs, the AVR is the perfect combination of the latest in digital audio technology, a quiet yet powerful analog amplifier in an elegant, easy-to-use package.
■Dolby* Digital, Dolby Digital EX and Dolby Pro Logic* IIx Decoding, and the full suite of DTS® modes, including DTS-ES®6.1 Discrete & Matrix and Neo:6® and DTS 96/24
■Seven channels of high-current amplifi- cation with two channels assignable to either surround back or multiroom applications
■Harman Kardon’s exclusive Logic 7® processing, along with a choice of Dolby Virtual Speaker processing for use when only two speakers are available
■Dolby Headphone to create spacious, open sound fields when using head- phones
■USB connectivity for audio playback with compatible computers and quick system upgrades
■Two HDMI™ 1.1 and three assignable high-bandwidth analog component inputs for compatibility with the latest high-definition video sources
■Harman Kardon’s advanced EzSet/EQ automatically configures speaker settings and sets room equalization for quick, easy and accurate system setup
■High-bandwidth, HDTV-compatible component video switching
■Front panel analog A/V inputs, switchable to outputs
■Front panel digital inputs with coax digital output capability for easy connection to portable digital devices and the latest video game consoles
■Multiple digital inputs and outputs
■On-screen menu and display system
■Extensive multiroom options, including a standard Zone II remote, assignable amplifier channels and A-BUS/READY®capability for listening to a separate source in a remote zone
■6-Channel/8-Channel Direct Input and Preamp Outputs for Easy Expansion and Use with Future Audio Formats
■Extensive bass management options, including Quadruple Crossover
■A/V Sync delay adjustable for each input delivers perfect lip sync with digital programs or video displays
