BMW 645Ci, Owner'S Manual

Page: 130 / 216

On/off and tone
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4. Select "Audio" and press the controller.
The tone settings can also be selected if
you have opened "Entertainment":
Select "Set" or "Tone" and press the con-
troller.
Treble and bass
1. Select "Treble / Bass" and press the
controller
2. Move the controller to the left or right to
select "Treble" or "Bass"
3. Turn the controller until the desired set-
ting is selected.
Balance and fader
You can set the right/left and front/rear
volume balance in the same manner as
"Treble / Bass".
Speed-dependent volume
The speed-dependent volume control
automatically increases the volume with
increasing speed. You can set various
stages for the increase in volume.
1. Select "Speed volume" and press the
controller
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 fre-
quency ranges.
1. Select "LOGIC7" and press the control-
ler
2. Select "Concert hall" and press the
controller.
LOGIC7 spatial sound is switched on.