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:
Adjusting
1. Press the L button for the left door mirror
or the R button for the right door mirror.
The light in the button comes on.
2. Adjust the position with the joystick in the
center.
3. Press the ...
Setting a speed
Use the or
buttons set the vehicle's current
speed. The set speed is shown in the display.
NOTE
Cruise control cannot be engaged at
speeds below 20 mph (30 km/h). ...
Styling
I've been a fan of the Volvo S40's face since it was last redesigned, and I'm
glad to see the look spreading across the Volvo brand to models like the S80 and
now the C30, which is related to both ...
