Sony KP 65WS500, KP-57WS500 manual Speaker, Audio Out Variable, Fixed

Using the Menus

Option	Description
Speaker	ON	Select to turn on the projection TV speakers.
	OFF	Select to turn off the projection TV speakers and
		listen to the projection TV's sound only through
		your external audio system speakers.
Audio Out	Variable	The projection TV’s speakers are turned off, but
Easy control		the volume output from your audio system can still
of volume		be controlled by the projection TV’s remote
adjustments		control.
	Fixed	The projection TV’s speakers are turned off and the
		volume, bass and treble output of the projection TV
		is fixed. Use your audio receiver’s volume control
		to adjust the volume through your audio system.

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