FORD F-250 - Manual (Page 40)

Bass adjust
The bass adjust control allows you
to increase or decrease the audio
system’s bass output.
Treble adjust
The treble adjust control allows you
to increase or decrease the audio
system’s treble output.
Speaker balance adjust
Speaker sound distribution can be
adjusted between the right and left
speakers.
Speaker fade adjust
Speaker sound can be adjusted
between the front and rear
speakers.
BASS
TREB
BAL
FADE
Controls and features
40