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:
Occupant Weight Sensor
Disabling the passenger's side front
airbag
Occupant Weight Sensor (OWS) indicator light
Volvo recommends that ALL occupants (adults
and children) shorter than 4 feet 7 inches
(140 cm) be s ...
Oil volume
...
Exterior
Chief Designer Peter Horbury calls the XC90’s appearance “masculine, but not
macho; muscular, but not aggressive.” At 188.9 inches long overall, the XC90 is
3.4 inches longer than Volvo’s V70 wago ...
