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:
Random
This function plays the tracks in random order (shuffle). The random tracks/sound
files can be scrolled through in the normal way. To listen to tracks in random order:
1. Press OK/MENU,
2. Turn TU ...
Tire inflation
Check tire inflation pressure regularly.
See the tire inflation table on page 275. A tire inflation pressure placard is
also located on the driver's side B-pillar (the structural member at the ...
Warranty
As you'd expect, the Volvo S40 saloon is supported by a comprehensive
warranty. The standard mechanical warranty is three years/60,000 miles
(whichever comes first), plus there's a three-year, unl ...
