60 to 90 cmFront speakerSurround speakerG2H When not using surround back speakersSubwooferSurround speakersMonitorCenter speakerFront speakers60°120°GAs seen from aboveH GAs seen from the sideHDolby DigitalDolby Digital is a multichannel digital signal format developed by DolbyLaboratories.A total of 5.1-channels are played: 3 front channels (“FL” , “FR” and“C”), 2 surround channels (“SL” and “SR”) and the “LFE” channel forlow frequencies.Because of this, there is no crosstalk between channels and a realisticsound field with a “three-dimensional” feeling (sense of distance,movement and positioning) is achieved.A real, overpowering sense of presence is achieved when playingmovie sources in AV rooms as well.SurroundDolby SurroundThe AVR-2309 is equipped with a digital signal processing circuit thatlets you play program sources in the surround mode to achieve thesame sense of presence as in a movie theater.Dolby Pro Logic gDolby Pro Logic g is a matrix decoding technology developed by DolbyLaboratories.Regular music such as that on CDs is encoded into 5-channels toachieve an excellent surround effect.The surround channel signals are converted into stereo and full bandsignals (with a frequency response of 20 Hz to 20 kHz or greater) tocreate a “three-dimensional” sound image offering a rich sense ofpresence for all stereo sources.Dolby Pro Logic gxDolby Pro Logic gx is a further improved version of the Dolby ProLogic g matrix decoding technology.Audio signals recorded in 2-channels are decoded to achieve a naturalsound with up to 7.1-channels.There are 3 modes: “Music” suited for playing music, “Cinema”suited for playing movies, and “Game” which is optimized for playinggames.Manufactured under license from Dolby Laboratories.“Dolby”, “Pro Logic” and the double-D symbol are trademarksof Dolby Laboratories.DTS SurroundDTS Digital SurroundDTS Digital Surround is the standard digital surround format of DTS,Inc., compatible with a sampling frequency of 44.1 or 48 kHz and upto 5.1-channels of digital discrete surround sound.DTS-ES™ Discrete 6.1DTS-ES™ Discrete 6.1 is a 6.1-channel discrete digital audio formatadding a surround back (SB) channel to the DTS digital surround sound.Decoding of conventional 5.1-channel audio signals is also possibleaccording to the decoder.DTS-ES™ Matrix 6.1DTS-ES™ Matrix 6.1 is a 6.1-channel discrete digital audio formatinserting a surround back (SB) channel to the DTS digital surroundsound through matrix encoding. Decoding of conventional 5.1-channelaudio signals is also possible according to the decoder.Dolby TrueHDDolby TrueHD is a high definition audio technology developed by DolbyLaboratories, using lossless coding technology to faithfully reproducethe sound of the studio master.This format is compatible with a maximum sampling frequency of 96kHz and up to 7.1-channels, so it is used for applications particularlyprioritizing sound quality.Dolby Digital PlusDolby Digital Plus is an improved Dolby Digital signal format that iscompatible with up to 7.1-channels of discrete digital sound and alsoimproves sound quality thanks to extra data bit rate performance. Itis upwardly compatible with conventional Dolby Digital, so it offersgreater flexibility in response to the source signal and the conditionsof the playback equipment.DTS-HD High Resolution AudioDTS-HD High Resolution Audio is an improved version of theconventional DTS, DTS-ES and DTS 96/24 signals formats, compatiblewith sampling frequencies of 96 or 48 kHz and up to 7.1-channelsof discrete digital sound. High data bit rate performance provideshigh quality sound. This format is fully compatible with conventionalproducts, including conventional DTS digital surround 5.1-channeldata.DTS-HD Master AudioDTS-HD Master Audio is DTS, Inc’s lossless audio format compatiblewith up to 96 kHz/7.1-channels. The lossless audio coding technologyfaithfully reproduces the sound of the studio master. It is fullycompatible with conventional products, including conventional DTSdigital surround 5.1-channel data.DTS NEO:6™ SurroundDTS NEO:6™ is a matrix decoding technology for achieving 6.1-channel surround playback with 2-channel sources. It includes “DTSNEO:6 Cinema” suited for playing movies and “DTS NEO:6 Music”suited for playing music.Getting Started Connections Setup Playback Remote Control Multi-zone Information TroubleshootingENGLISHSpecifications