IntroductionThank you for choosing Harman Kardon!With the purchase of a Harman Kardon AVR 255/AVR 355 you are about to begin many years oflistening enjoyment. Designed to provide all theexcitement and detail of movie soundtracks andevery nuance of musical selections, the AVR 255/AVR 355 are truly multichannel receivers for thenew millennium. In addition to the traditional 5.1digital decoding modes such as Dolby Digital andDTS, they offer the latest advancements in sur-round technology such as Dolby® True HD andDTS®-HD Master Audio™ and the latest 7.1channel versions of Harman's own Logic 7technology.The AVR 255/AVR 355 have been engineered sothat it is easy to take advantage of all thepower of their digital technology. Full-color,high-definition, multi-language on-screenmenus, fully color coded connection jacks andterminals make installation fast and simple.However, to obtain the maximum enjoymentfrom your new receiver, we urge you to read thismanual. A few minutes spent learning the func-tions of the various controls will enable you totake advantage of all the power the AVR is ableto deliver.If you have any questions about this product, itsinstallation or its operation, please contact yourretailer or custom installer. They are your bestlocal sources of information.Description and FeaturesThe AVR serves as the hub of your home enter-tainment system, providing a wide range of lis-tening possibilities for almost any audio or videoprogram source, whether it is the broadcast of amovie or sporting event in HDTV or a vintagemono or stereo recording. When playing digitalaudio sources from either the conventional opti-cal and coaxial inputs, or through the HDMI 1.3acompliant connections, the AVR decodes DolbyTrue HD, Dolby Digital Plus, DTS-HD MasterAudio and DTS-HD data streams. Two-channelstereo and matrix surround sources benefit fromall current Dolby Pro Logic IIx modes and DTSNeo:6. The latest version of our proprietary Logic7® process is on-board to create a wider, moreenveloping sound field and more defined sur-round channel positioning, regardless of the typeof source material.Dolby Virtual Speaker is available to createenveloping sound fields from front left and rightspeakers, and the latest Dolby Headphonecircuitry creates an amazing sense of opennesswith headphones.The AVR takes the “video” part of its name seri-ously. Along with three HDMI inputs and three100MHz analog component video inputs (twoon the AVR 255), the AVR’s video processingallows you to scale the output signal to 1080ploop-through to match the requirements of yourspecific video display. Thanks to award winningFaroudja® DCDi Cinema™ technology, yourvideo sources never looked better. Tying audioand video together, the AVR provides A/V syncdelay so that the lip sync errors – commonlyseen when digital video processing is used in asource, program or video display – areeliminated.An important addition to the AVR’s impressivelist of features is EzSet/EQ ™, which automatesthe configuration process to make it quicker, eas-ier and more precise. Using the special micro-phone supplied with the unit, EzSet/EQ takes theguesswork out of entering speaker “size” andcrossover information, delay times for all chan-nels and output levels. In addition to the config-uration settings, EzSet/EQ also includes roomequalization so that the signals sent to eachspeaker are tailored to provide accurate sonicquality with your specific combination of speakertype, room size and other factors that influenceroom acoustics. With EzSet/EQ, your system iscustom-configured in a few minutes with accu-racy that previously required expensive andhard-to-use test equipment.In tandem with EzSet/EQ, the AVR includes a fullset of manual configuration settings for thosewho wish to custom-trim their system even fur-ther. A Quadruple Crossover bass managementsystem makes it possible to enter differentcrossover settings for each speaker group.A Stereo-Direct mode bypasses the digitalprocessor to preserve all of the subtleties of olderanalog, two-channel materials, while bassmanagement, available in the surround andStereo-Digital modes, improves your ability totailor the sound to suit your room acoustics ortaste.For the ultimate in flexibility, the AVR’s featureconnections for four video devices, all with bothcomposite and S-Video inputs. Two additionalaudio inputs are available, and a total of sixdigital inputs and two outputs make the AVRcapable of handling all the latest digital audiosources. For compatibility with the latest HDTVvideo sources and progressive scan DVD players,the AVR also features wide-bandwidth, low-crosstalk component video switching.Coax and optical digital outputs are available fordirect connection to digital recorders. A videorecording output and a color-coded eight-chan-nel input make the AVR virtually future-proof,with everything needed to accommodate tomor-row’s new formats right on board.With one simple connection between theAVR 355 and the optional Harman Kardon, you are able to listen to materialsstored on your compatible Apple® iPod®**.Your AVR’s system remote control has beenpreprogrammed with control codes that enableyou to select tracks for playback and navigatemany of your iPod’s functions, even from acrossthe room. The Bridge™ will even let you chargeyour iPod.The AVR 355’s flexibility and power extendbeyond your main home theater or listeningroom. The AVR includes a sophisticated multi-zone control system that allows you to selectone source for use in the main room and adifferent one (Audio only) in a second room.Complete control over volume is possible with aseparate infrared control link. To make it easy tooperate the AVR from a remote room, a separate“Zone II” remote is included.Additional multiroom options include the optionto assign two of the AVR’s output channels to themultiroom system and the ability to link the AVRto innovative A-BUS® keypads for multiroom oper-ation without the need for external amplifiers.The AVR’s powerful amplifier uses traditionalHarman Kardon high-current design technolo-gies to meet the wide dynamic range of any pro-gram selection.Harman Kardon invented the high-fidelityreceiver more then fifty years ago. With state-of-the-art circuitry and time-honored circuitdesigns, the AVR 255 and AVR 355 are theperfect combination of the latest in digital audiotechnology, a quiet yet powerful analogamplifier in an elegant, easy-to-use package.**Compatible with all iPod models equipped with a dock connector, including third-generation “Click Wheel” models and newer. Not compatible with iPodshuffle models. Although iPod photo models are compatible, images stored on the iPod can only be viewed using the controls on the iPod, not with theAVR remote.ENGLISHINTRODUCTION 3