42KRF-V7771D (En/T)OperationsDolby Digital (AC-3)The Dolby Digital (AC-3) surround format lets you enjoy up to 5.1 channels ofdigital surround sound from Dolby Digital (AC-3) program sources (such asLaserdisc software marked or AC - 3 D I G I T A L ). Comparedwith previous Dolby surround, Dolby Digital (AC-3) provides even bettersound quality, greater spatial accuracy, and improved dynamic range.NoteAlthough a full set of speakers (front left and right, center, surround left andright, and a subwoofer) is required for true 5.1 channel Dolby Digital (AC-3)surround sound, this receiver lets you enjoy Dolby Digital (AC-3) (and DolbyPro Logic) program sources, even if you connect only the front speakers.* LFE = Low Frequency Effects. This channel deliversseparate non-directional bass signals to the subwooferfor more dynamic deep bass sound effects.Dolby Digital is the only Dolby method to have an LFEchannel.Front Speaker (L,R)Subwoofer (SW) (LFE)*Center speaker (C)Surround speaker (LS, RS)(stereo signal)Ambience effectsThis receiver incorporates 6 different listen modes to let you enjoy surround sound with a wide variety of program sources. TheDolby Digital (AC-3), Dolby Pro Logic and MPEG surround modes let you enjoy theater-like surround effects when you play DolbyDigital (AC-3), Dolby Surround and MPEG program sources (like videotapes, LaserDiscs and DVDs). The Dolby 3 Stereo modecreates a panoramic frontal sound field. The DSP (Digital Signal Processing) mode lets you create a variety of different sonicenvironments from PCM as well as analog sources.To obtain the best possible surround sound, be sure to complete “Setup for surround play” before using the surround modes.™Listen modes* Optional in this mode.MPEG (multi-channel)TV TV* Optional in this mode.Dolby Pro LogicDolby Pro Logic is a specially encoded 2 channelsurround format designed to provide theater-like sur-round sound from Dolby Surround encoded sources(such as video and Laserdisc software marked). This receiver is equipped with aDolby Pro Logic surround decoder to let you enjoy thewide variety of currently available Dolby Surroundhome video software. Front Speaker (L, R)Subwoofer (SW)*Center speaker (C)Surround speaker (LS, RS)Front Speaker (L, R)Subwoofer (SW)*Surround speaker (LS, RS)In case center speaker is not usedFront Speaker (L,R)Subwoofer (SW)*Center speaker (C)Surround speaker (LS, RS)(stereo signal)* Optional in this mode.MPEG, which stands for “Moving Pictures Experts Group”, is an internationalstandard of digital video and audio compression and decompression in media.It is the most efficient encoding method for compressed multi-channel audiowhich provides the highest sound quality to deliver the best movie theatersound into the home..NoteAlthough a full set of speakers (front left and right, center, surround left andright, and a subwoofer) is required for true MPEG 5.1 multi-channel surroundsound, this receiver lets you enjoy the same surround sound, even if youconnect only the front speakers.