Sound mode type	Description
Dolby Atmos	Please select this mode to play content encoded with Dolby Atmos. If you have selected a different sound mode previously, please select again this mode for Dolby Atmos content play back. It decodes Dolby Atmos content and its positioning data in real time and outputs audio from the appropriate speakers, creating natural audio images regardless of the speaker layout. Use ceiling speakers and/or Dolby Atmos Enabled speakers to realize a three-dimensional sound field. An immersive audio experience can be enjoyed from traditional speaker layouts that do not employ overhead or Dolby Atmos Enabled Speakers by selecting the Speaker Virtualizer feature∗.
Dolby TrueHD	Please select this mode to play back the contents encoded with Dolby TrueHD at 192kHz/96kHz.
Dolby Digital Plus	Please select this mode to play back the contents encoded with Dolby Digital Plus.
Dolby Digital	Please select this mode to play back the contents encoded with Dolby Digital.
Dolby Surround	This mode uses Dolby Surround Upmixer to extend various sources to natural and realistic multi channels for playback. Use ceiling speakers such as top middle speakers to realize a three-dimensional sound field.

The Speaker Virtualizer feature will be supported via firmware update.

DTS sound mode

Sound mode type	Description
DTS Surround	This mode can be selected when playing sources recorded in DTS.
DTS ES Dscrt6.1∗1	This mode is suitable for playing discs recorded in DTS-ES. The surround back channel added using the discrete method is played as an independent channel. Since all channels are independent, the 360-degree spacial expressiveness and sound localization are enhanced.
DTS ES Mtrx6.1∗1	This mode is suitable for playing discs recorded in DTS-ES. The surround back channel added to the surround-left and surround-right channels by a matrix encoder at software recording time is decoded by this unit’s matrix decoder and played from each channel (surround left, surround right, surround back).
DTS 96/24	This mode can be selected when playing sources recorded in DTS 96/24.
DTS-HD	This mode can be selected when playing sources recorded in DTS-HD.
DTS Express	This mode can be selected when playing sources recorded in DTS Express.
DTS:X	This mode can be selected when playing back content encoded with DTS:X. It decodes DTS:X content and its positioning data in real time and outputs audio from the appropriate speakers, creating natural audio images regardless of the speaker layout. Use height speakers to realize a three-dimensional sound field.
IMAX DTS	This mode is automatically activated when playing back IMAX Enhanced content featuring a DTS bitstream. link Also this mode is selectable when “Surround Parameter” - “IMAX” is set to “On” in the menu and a 48 kHz sampling frequency DTS 5.1 channel signal is being input. When “Speaker Config.” - “Surr. Back” is set to “2 spkrs”, “Speaker Config.” - “Center” is set to “Large” or “Small”, and sound mode is set to “IMAX DTS”, surround audio is output from the surround back speaker. Audio is not output from the surround speaker. The bass information of speakers are not redirected to the subwoofer, but getting a better bass effect from front and center speakers by special algorithm of IMAX when the “Front” and “Center” are set to “Small”.
IMAX DTS:X	This mode is automatically activated when playing back IMAX Enhanced content featuring a DTS:X bitstream. link The bass information of speakers are not redirected to the subwoofer, but getting a better bass effect from front and center speakers by special algorithm of IMAX when the “Front” and “Center” are set to “Small”.
DTS Neural:X∗2	This mode uses DTS Neural:X Upmixer to extend various sources to natural and realistic multi channels for playback. Use height speakers such as front height speakers to realize a three-dimensional sound field.
DTS Virtual:X∗2∗3	This mode uses DTS Virtual:X with virtual height and virtual surround processing to realize a three-dimensional sound field when the height speakers are not used.

This can be selected when “Speaker Config.” - “Surr. Back” is not set to “None”. link

It cannot be selected when the input signal is Dolby Digital, Dolby Digital Plus, Dolby TrueHD or Dolby Atmos.

This can be selected when Height, Ceiling and Dolby Atmos Enabled speakers are not being used.

PCM multi-channel sound mode

Sound mode type	Description
Multi Ch In	This mode can be selected when playing multi-channel PCM/DSD sources.

Original sound mode

Sound mode type	Description
Multi Ch Stereo	This mode is for enjoying stereo sound from all speakers.
Virtual	This mode lets you experience an expansive surround sound effect when playing back through just the front (L/R) speakers only, and when listening with stereo headphones.

Auto sound mode

Sound mode type	Description
Auto	In this mode, the type of digital signal input, such as Dolby Digital, Dolby TrueHD, Dolby Digital Plus, Dolby Digital EX, Dolby Atmos, DTS, DTS-HD, DTS:X, DTS-ES, PCM (multi-channel) is detected, and the playback mode switches automatically to the corresponding mode. If the input signal is analog or PCM (2-channel), stereo playback is used. For Dolby Digital or DTS, the music is played back according to the respective channel number.

Sound mode type

Description

Auto

In this mode, the type of digital signal input, such as Dolby Digital, Dolby TrueHD, Dolby Digital Plus, Dolby Digital EX, Dolby Atmos, DTS, DTS-HD, DTS:X, DTS-ES, PCM (multi-channel) is detected, and the playback mode switches automatically to the corresponding mode.
If the input signal is analog or PCM (2-channel), stereo playback is used. For Dolby Digital or DTS, the music is played back according to the respective channel number.

Stereo sound mode

Sound mode type	Description
Stereo	This mode plays 2-channel stereo audio with no additional surround sound processing. Sound is output from the front left and right speakers, and subwoofer if connected. When multi-channel signals are inputted, they are mixed down to 2-channel audio and are played back with no additional surround sound processing.

Direct sound mode

Sound mode type	Description
Direct	This mode plays back audio as recorded in the source.
Pure Direct	This mode plays back an even higher quality sound than the “Direct” mode. The following circuits are stopped in order to further improve sound quality. Display indicator circuit of the main body (display will go off.) The analog video input/output switcher and processor is disabled.