BMW 328i Owner's Manual page 160

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 "Surround Settings" and press the
controller.
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2. Select "Concert hall" or "Theater".
3. Press the controller.
LOGIC7 spatial sound is switched on.
To switch off the spatial sound effect:
Select "Off" and press the controller.
LOGIC7 and the LOGIC7 logo are registered
trade marks of Lexicon, Inc., a company of the
Harman International Group.
Individual High-End Audio System*
You can choose between stereo and multichan-
nel playback, surround.
1. Select "Surround Settings" and press the
controller.
2. Select "Stereo" or "Surround".
Equalizer*
You can set individual sound frequency ranges.