2001 Xsara Speaker Vibration

[harry66]

hi guys,

 

 

need some advise just fitted front and rear kenwood 200w speakers on my 2001 model xsara.

 

they are still alot better than the factory ones apart from a annoying vibration in most the door panels when i have the slightest amount of bass, what would be the best way to solve this problem? could it be loose door panels or maybe the speakers vibrating on the original speaker covers that i had to put over them?

 

 

any advise would be great, thanks 

[paul.h]

Welcome to the forum.

 

This is just guesswork, but maybe you could experiment on one door. If the vibration was not there before you could try without the speaker cover. If this does not help then you may have to take the door card apart and see what is loose and if it can be fastened.

[dasault]

in my experience... vibration in all speakers is usually the fact the factory radio has not enough power to drive the new speakers so the vibration is actually Distortion ! be careful with the volume if radio is turned up tooo loud or loudness function is set to on .. the radio could start clipping then  the speakers will blow.

The second way this can happen is an upgraded head unit is fitted but speakers are not replaced... explantion : the re[placement speakers have a easier / smoother movement and will slap when the factory radio is cranked up. The better after market radios ( some ) have a damping factor built in and this controls how quickly the cone moves and stops them over extending.. this is much more effective when using a power amp.. and the better amps have a high damping factor allowing high volumes with very low distortion and ultimate control of how the speaker cone moves.

Factory headunits / speakers are matched and are usually on a budget. the low wattage speakers o/e fit have usually very stiff paper cones with small magnets .. usually only requiring 2 or 3 watts to drive them .

now put a 20 watt ( thats really all they are ) quoted as 50 watts.. but 20 watts is a lot in a car. the o/e speakers can't take this power so they start fupping / that is the sound of the cones bottoming out .

It is very rare that the vibration is a plastic moulding ... not in all speakers.

When i used to do installs .. i settled on alwways advising the customer to get sound proofing / damping pads fitted first... then no matter what speakers are fitted they will sound much more controlled, less road noise . and NO metal ringing comming from the doors.... and as you upgrade the speakers the quality imprivement is always more pronounced !!

hope this helps ... if a bit long winded lol

Edited May 27, 2014 by dasault