28* Manufactured under license from Dolby Laboratories. “Dolby”, “ProLogic”, and the double-D symbol are trademarks of DolbyLaboratories.Creating realistic sound fieldsReproducing theater ambienceIn a movie theater, many speakers are located on the walls toreproduce impressive multi-surround sound, reaching you from alldirections.With these many speakers, sound localization and sound movementcan be expressed.Surround/DSP modes built in this receiver can create almost thesame surround sound as you can feel in a real movie theater.Introducing the Surround/DSP modesYou can use the following Surround/DSP modes with this receiver. Surround modes• Dolby Pro Logic II• Dolby Digital• DTS DSP (Digital Signal Processor) modes• DAP (Digital Acoustic Processor) modes• All Channel Stereo Surround modesDolby Pro Logic II*Dolby Pro Logic II has a newly developed multi-channel playbackformat to decode all 2 channel sources—stereo source and DolbySurround encoded source—into 5.1 channel.Matrix-based encoding/decoding method for Dolby Pro Logic II makesno limitation for the cutoff frequency of the surround treble andenables stereo surround sound compared to conventional Dolby ProLogic.Dolby Pro Logic II enables you to reproduce spacious sound fromoriginal sound without adding any new sounds and tonal colorations.Dolby Pro Logic II has two modes—Movie mode and Music mode:Pro Logic II Movie—suitable for reproduction of Dolby Surroundencoded sources bearing the mark DOLBY SURROUND . You can enjoy asound field very close to the one created with discrete 5.1 channelsounds.Pro Logic II Music—suitable for reproduction of any 2-channel stereomusic sources. You can enjoy wide and deep sound by using thismode. For this mode, Panorama control can be selected, which gives“wraparound” sound effect with side-wall image.• When Dolby Pro Logic II is activated, the PLII indicator lights upon the display.Dolby Digital*Dolby Digital is a digital signal compression method, developed byDolby Laboratories, and enables multi-channel encoding anddecoding (1 channel up to 5.1 channel).Dolby Digital 5.1 channel encoding method records and digitallycompresses the left front channel, right front channel, center channel,left surround channel, right surround channel, and LFE channelsignals (total 6 channels, but the LFE channel is counted as 0.1channel. Therefore, it is called 5.1 channel).Dolby Digital enables stereo surround sounds, and sets the cutofffrequency of the surround treble at 20 kHz, compared to 7 kHz forDolby Pro Logic. As such, the sound movement and “being-there”feeling are enhanced much more than Dolby Pro Logic.• To enjoy software encoded with Dolby Digital, connect the sourcecomponent using the digital terminal on the rear of this receiver.(See page 7.)NOTEDolby Digital software can be roughly grouped into two categories—multi-channel (up to 5.1 channel) and 2 channel software. To enjoysurround sound while playing Dolby Digital 2 channel software, youcan use Dolby Pro Logic II.**“DTS” and “DTS Digital Surround” are registered trademarks ofDigital Theater Systems, Inc.28-34_RX-ES9SL[B]f 03.6.27, 16:4628