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:
Turning off the accessory alarm sensors
In certain situations it may be desirable to turn off the accessory inclination
and movement alarm sensors if, for example, you drive your vehicle onto a ferry
where the rocking of the boat could ...
Comfort and convenience
While the interior of the Volvo S40 places an emphasis on style, form has not
been allowed to take precedence over function. The fascia ergonomics have been
carefully designed and drivers will fin ...
Limitations
Distance Alert uses the same radar sensor
used by Adaptive Cruise Control and the Collision
Warning system. See page 159 for more
information on the radar sensor’s limitations.
NOTE
Strong sun ...
