25OperationsAmbience effectsThis receiver is equipped with listening modes that allowyou to enjoy an enhanced sonic ambience with a variety ofvideo sources.In order to obtain the optimum effect from the surroundmodes, make sure to input the proper speaker settingsbeforehand. (Surround modesDolby DigitalThe Dolby Digital surround format lets you enjoy up to 5.1 channels ofdigital surround sound from Dolby Digital program sources (such asLaserdisc or DVD software marked ). Compared with previousDolby surround, Dolby Digital provides even better sound quality,greater spatial accuracy, and improved dynamic range.NoteAlthough a full set of speakers (front left, right, and center, surround leftand right, and a subwoofer) is required for true 5.1 channel Dolby Digitalsurround sound, this receiver lets you enjoy Dolby Digital (and DolbySurround) program sources, even if you connect only the front speakers.* LFE = Low Frequency Effects. This channel delivers separate non-directional bass signals to the subwoofer for more dynamic deep basssound effects.Although only Dolby Digital soundtracks incorporate a separate lowfrequency channel, connecting a subwoofer will also improve deep bassperformance in the other surround modes.The indication “LFE” appears in the display when a signal is being inputfor this channel.Front speakers (L, R)Subwoofer (SW)*Center speakerSurround speakers (L, R)DTSThe DTS multi-channel audio format is available on CD, LD and DVDsoftware. DTS is a strictly digital format and can not be decoded insidemost CD, LD or DVD players. For this reason, if you attempt to listen toDTS encoded software through the analog output of your new CD, LDor DVD player, you will experience digital noise in most cases. This noisecan be quite loud if the analog output is connected directly to a highpower amplification system. Proper measures for playing the digitaloutput as described below should be taken to avoid this situation. Toenjoy DTS Digital Surround playback, an external 5.1 channel DTSDigital Surround decoder system or an amplifier with a built-in DTSDigital Surround decoder must be connected to the digital output (S/PDIF, AES/EBU or TosLink) of a CD, LD or DVD player.All models are incorporated with the DTS decoder.* Optional in this mode.* LFE = Low Frequency Effects. This channel delivers separatenon-directional bass signals to the subwoofer for more dynamicdeep bass sound effects.DTS has a .1 or LFE channel.The indication “LFE” appears in the display when a signal isbeing input for this channel.Front speakers (L, R)Subwoofer (SW)*Center speakerSurround speakers (L, R)Dolby Pro Logic is a specially encoded 2 channel surround formatdesigned to provide theater-like surround sound from Dolby Surroundencoded sources (such as video and Laserdisc software marked). This receiver is equipped with a Dolby Pro Logicsurround decoder to let you enjoy the wide variety of currently availableDolby Surround home video software. Surround signal is monaural.Dolby Pro LogicFront speakers (L, R)Subwoofer (SW)Center speakerSurround speakers (L, R)Manufactured under license from Digital TheaterSystems, Inc. US Pal. No. 5,451,942 and otherworldwide patents issues and pending.“DTS” and “DTS Digital Surround” are trademarksof Digital Theater Systems, Inc.© 1996 Digital Theater Systems, Inc. All rightsreserved.Manufactured under license from Dolby Laboratories. Dolby, Pro Logicand the double-D symbol are trademarks of Dolby Laboratories.Confidential Unpublished Works. ©1992-1997 Dolby Laboratories. Allrights reserved.