Instruction manual

The setting will be fixed to "Left/Right" if "Speaker Configuration" -
"Center" is set to "None".
Dolby
Make the settings for Dolby listening mode.
Loudness Management
Default Value: On
Enable the Late Night function that allows you to enjoy surround sound
of Dolby TrueHD playback even in low volume.
"On": Use this function
"Off": Do not use this function
Center Spread
Default Value: Off
Adjust the width of the front sound field created during Dolby Surround
listening mode playback.
"On": The sound field is spread to left and right.
"Off": The sound field is centralized.
The setting will be fixed to "Off" if "Speaker Configuration" - "Center"
is set to "None".
DTS
Make the settings for DTS Neo:X Music listening mode.
Neo:X Music
Center Image
Default Value: 2
Adjust the width of the sound field of the front channel when playing in
the DTS Neo:X Music listening mode.
"0" to "5": Selecting a smaller value brings the sound field of the front
channel to the center while selecting a larger value spreads the sound
field of the front channel to left and right.
Theater-Dimensional
Make the settings for Theater-Dimensional mode.