X headphone theater dcs, To turn off the surround effect, Note – Sony STR-DA9000ES User Manual
Page 34: Listening to the sound without any adjustment, Selecting the surround back decoding mode, Selecting the surround back decoding, Mode — surr back decoding

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HEADPHONE THEATER
DCS
Allows you to experience a theater-like environment
while listening through a pair of headphones.
To turn off the surround effect
Press 2CH, or press A.F.D. to select “A.F.D.
AUTO”.
Enjoying the surround effect
at low volume level
(NIGHT MODE)
This function allows you to retain a theater like
environment at low volume levels. This function
can be used with other sound fields.
When watching a movie late at night, you will be
able to hear the dialog clearly even at a low
volume level.
Press NIGHT MODE
The NIGHT MODE function is activated.
Tip
While this function is on, the BASS, TREBLE, and
EFFECT level increase, and “D.RANGE COMP.” is
automatically set to “MAX” (page 45).
Note
This function cannot be activated when MULTI CH IN
or DIRECT function is activated.
Listening to the sound
without any adjustment
You can listen to the sound without adjusting the
equalizer and surround effect.
Press DIRECT.
The equalizer and sound fields are canceled.
Note
LIP SYNC (page 41) is not activated when analog
input is selected and DIRECT function is used.
This function lets you select the decoding mode
for the surround back signals of the multi
channel input stream.
By decoding the surround back signal of DVD
software (etc.) recorded in Dolby Digital EX,
DTS-ES Matrix, DTS-ES Discrete 6.1, etc.
format, you can enjoy the surround sound
intended by the filmmakers.
Press SURR BACK DECODING repeatedly
to select the surround back decoding
mode.
For details, see “How to select the surround back
decoding mode” on page 35.
Tip
You can select the surround back decoding mode using
“SB DECODING” in the CUSTOMIZE menu
(page 40).
Selecting the surround
back decoding mode
— SURR BACK DECODING