BMW 525i Owner's Manual page 147

The tone settings can also be selected when
you have opened "Entertainment" in the start
menu:
Select "Set" and then "Tone" and press the
controller.
Treble and bass
1. Select "Treble / Bass" and press the con-
troller.
2. Move the controller to the left or right to
select "Treble" or "Bass".
3. Turn the controller until the desired setting
is selected.
Balance and fader
You can adjust the right/left volume distribution,
balance, and front/rear, fader, just like "Treble /
Bass".
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Speed-dependent volume control
The speed-dependent volume control auto-
matically increases the volume with increasing
speed. You can set various stages for the
increase in volume.
1. Select "Speed volume" and press the con-
troller.
2. Turn the controller.
The adjustment is applied; the field can be
changed.
Professional LOGIC7 HiFi System*
You can select a spatial sound effect that
improves the spatial acoustics in all frequency
ranges.
1. Select "LOGIC7" and press the controller.