Resetting Customized Sound Fields To The Factory Settings - Sony STR-DE985 Operating Instructions Manual

Lets you adjust the gain and frequeucy of bass.
treble.
Lets you adjust the gain and frequency of
treble.
* You can set the parameter for frequency only
when you set "'MENU EXPAND" to "ON" in
the CU~~O~~E menu (page 44).
Initialize" appears in the display and
ah sound fields are reset at once.