Optimal sound reproduction

The audio system is pre-calibrated for optimal sound reproduction using digital signal processing.
This calibration takes into account factors such as the speakers, amplifier, cabin acoustics, the listeners' seating positions, etc., for each combination of vehicle/infotainment system.
There is also a dynamic calibration that takes into consideration the volume level, radio reception, and the speed of the vehicle.
The settings that are described in this manual, (Bass, Treble, Equalizer etc.) are only intended to enable the user to adapt sound reproduction to his/her personal tastes.
See also:
Air vents in the dashboard
a Open
b Closed
c Horizontal airflow
d Vertical airflow
Direct the outer air vents toward the side windows
to defrost. ...
R-design
The R-DESIGN is a sporty version of the Volvo C30 and most closely resembles
the Volvo C30 Design Concept. Exterior design includes an R-DESIGN badge in the
front grille, colour coordinated bodykit, ...
Resetting
If the battery has been disconnected, the auto open function must be reset so
that it will work properly.
1. Gently raise the front section of the button to close the window and hold
it for one s ...
