Rear speakers vibrates lot

Rear speakers vibrates lot

:cry: Hello folks:
I replace my original rear speaker for a new one Polk series, the original ones have a foam material above them, unfortanely I can not use this rim of foam.
Rigth now when I play a music with bass the rear deck chake(vibration) a lot , and this is not cool.
What may I do to resolve this problem?
Thanks
victor

How are the new speakers affixed to the deck? Are they bolted to it?

Is it the sheet metal vibrating, or the plastic of the deck? Either way, I would buy some Dynamat and put it on the top of the sheet metal. Also make sure that the insulation between the deck and the sheet metal is in place. As long as that insulation is there and the deck is completely secured to the sheet metal there is no reason for it to vibrate. They also sell spray foam that you could use for some additonal insulation below between the two surfaces.

Dynamat will probably be your best bet in trying to reduce the vibration in the rear deck, thats what I did when I put in my Pioneer 6x9s

rear deck

i have that problem too, dynamat isnt gonna work, b/c the whole back deck it self shakes in my car.....but thats my car....i fucked around with my back deck puttin double sided tape (dynamat) too the ends of the back deck. its a bitch to have that rattle sound...i feel you.

rear plastic deck

yes is the plastic deck that vibrates.
I have read all the messages and almost all talk me about dinamat do you thik this really works in my problem.
This come in rolls or what.?
thaks

Re: rear plastic deck

Either rolls or square sheets. There's another alternative called Raamat which also comes in rolls, and its a bit cheaper... but I dunno where you could find that stuff.

u can find Raammat deadening materials from www.raamaudio.com and yes its cheaper than dynamat. You can also find raammat deadening materials by typing "Raammat" in tha Yahoo search engines

Any one solve this problem yet? I found the rattling sound actually coming from the middle of the deck between two rear speakers.

This problem is easy to fix. Remove the entire rear deck (the plastic panel) and either 1. stuff foam or carpet between the sheetmetal and the plastic panel, or 2. apply expanding foam (messy but more effective) I suggest the former though. Anytime you see a spot where plastic and sheetmetal meet, you want to insulate this with foam. Dynamat is only for flat metal surface and will not eliminate rattles-- it only eliminates resonance on flat metal surface (removes the "gong" or "cymbal" effect)

Go buy some fleece from JoAnn Fabrics ($2 sq/yd) and stuff it in there :mrgreen:

or buy some rubber foam sealant

Bolt the panel cover down.

drill thru the panel into the trunk in a couple areas. tighten a thin bolt down so it stabilizes the cover and brings it in contact with the mat. end of vibration. Pretty up the top with a cover for the bolt.

i got some apline type S 6x9s in the rear, i use some thick foam tape and put a strip around the bottom rim of the speaker before i install them. no vibration and the sound is awesome.