Sony DAV-DZ555K Operating Instructions Manual page 36

• When the bilingual broadcast sound is input, Dolby
Pro Logic and Dolby Pro Logic II MOVIE/MUSIC
are not effective.
Using only the front speaker
and subwoofer
x 2 CHANNEL STEREO
This mode outputs the sound from the front left
and right speakers and subwoofer. Standard 2
channel (stereo) sources completely bypass the
sound field processing. Multi channel surround
formats are downmixed to two channels.
This allows you to play any source using only
the front left and right speakers and subwoofer.
To turn the surround effect off
Press SOUND FIELD repeatedly until "A.F.D.
STD" or "2CH STEREO" appears in the front
panel display.
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