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:
Brake fluid
Location of the brake fluid reservoir
Checking the level
The fluid reservoir is concealed under the round cover at the rear of the engine
compartment. The round cover must be removed first befor ...
Sport
In this mode, the vehicle's body sway is
reduced during cornering and steering
response is more immediate. The transmission
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Overview
With dynamic design, high quality and class-leading safety, the Volvo S40
saloon is a true Volvo and one that asserts a unique identity in the growing
premium compact class.
Boasting a four-door ...
