Sony STR-D715 - Adjusting Rear Speaker Delay Time

Adjusting the Delay Time of the Rear
Speakers
To turn off the surround effect
Press SOUND HELD ON/OFF to OFF.
The sound without surround effect will resume.
The settings of the center and rear level and the delay time
are not cleared until you change the settings. They will be
recalled whenever you select a sound field program.
Note
The delay time for the rear speakers can be adjusted even in
the 3 CH LOGIC mode.
— for DOLBY SUR (Dolby surround) mode
The delay time is a time between the surround sound from
the front and that from rear speakers. The delay time is
adjustable from 15 ms to 30 ms. For the adjustable range of
the delay time except for the DOLBY SUR mode, see page 23.
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