I just replaced my front speakers. These were 10W nom 20W max, I put some 20W Nom 130W max. There was something like a capacitor (I did not remove the plastic yet) on one wire of each one. What is it for? Reduce power? Phase correction?
Anyway I removed them, it is working fine. The audio is a two years old mp3 player 4X50W. Can someone explain me?

 

Was it touching both wires to the speaker? or were both contacts on one wire.

 

Hi,

If you are having trouble with the front speakers over-driving with bass settings, then you would install the capacitor in series with one of the leads- not across the speaker leads.

take a look at this link:

http://www.bcae1.com/capspkr.htm

 

Thanks you are right on the point. The capacitors were "in serie" (just on one wire).
My electrical classes were not so fresh... but now I remember, it creates high pass filter really useful if you have a boomer installed (which was previously the case in my car). Now I need to look at the rear ones to remove it too.

 

Yeah I was gonna say, if it's all on the same wire, it's a filter like you stated. If it were across both wires, I would have said AC/DC noise suppression.

 

ya almost defently a filter for low pass or high pass frequency's

 

Capacitors block low frequencies. Coils block high frequencies. Neither one do a very efficient job.