S90 L6-2.9L VIN 96 B6304S (1998)
Speaker: Testing and Inspection
Preliminary Information
The sound quality of all systems relies on the speakers. An otherwise excellent sound system can sound very poor if the speakers are sub-standard.
This also applies to the installation of the speakers. If the installation is poor the sound quality will be poor. Be very careful when installing speakers.
Caution: Never install used speakers in a new car or with a new stereo system. Speakers deteriorate with time.