How Bad is the Rattle in the Trunk with Subs??? - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 24 (permalink) Old 12-09-2009, 09:33 PM Thread Starter
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How Bad is the Rattle in the Trunk with Subs???

im planning on getting a sound system for christmas and i dont know if i should get dynamat or not, honestly i dont wont to waist 60 bucks but i heard stories of windshields cracking and stuff. if i do get the dynamat would i need to do the whole trunk or just the door of the trunk or what????
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post #2 of 24 (permalink) Old 12-09-2009, 09:35 PM
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Quote:
Originally Posted by 05c08a!t View Post
im planning on getting a sound system for christmas and i dont know if i should get dynamat or not, honestly i dont wont to waist 60 bucks but i heard stories of windshields cracking and stuff. if i do get the dynamat would i need to do the whole trunk or just the door of the trunk or what????
i would get it but i dont have it. Dont really have the money but mines not to bad. But i have had them in for about 2 months now and its getting worse lol

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post #3 of 24 (permalink) Old 12-09-2009, 10:32 PM
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with the cracking the windshield and all... if your gonna have the gain on the sub all the way up and play your music loud as you can, then you have to crack your windows. the subs push and vibrate the windows and mess with the air pressure and thats how you crack out your windows. i spend too much time in zebart. and my LS has the stock Pionneer sub in it and i must say, it doesnt rattle at all. hope this helps out

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post #4 of 24 (permalink) Old 12-09-2009, 11:50 PM
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If you are operating any decent sized system definately dynamat because you will have some rattling and I the dynamat helps the sound immensly on the outside of the car and even helps the sound quality and tightness on the inside

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post #5 of 24 (permalink) Old 12-09-2009, 11:58 PM
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if your still thinkin about getting my 15's your gonna need a lot of dynamat.. all i have is two tens and i have my entire trunk coated in it. and i still get a little rattle when i turn it up all the way.

dynamat will not stop 100% of the rattle but it will stop most of it. there are some places that you just can't reach..


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post #6 of 24 (permalink) Old 12-10-2009, 04:36 AM
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You can find an inexpensive alterantive to Dynamat on Ebay by a couple different vendors. I have successfully bought from two different vendors with two different varities for both of my vehicles and are happy with both brands. Got enough for both doors for 45 to my door on one buy.



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post #7 of 24 (permalink) Old 12-10-2009, 06:28 AM
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Originally Posted by golfin' View Post
If you are operating any decent sized system definately dynamat because you will have some rattling and I the dynamat helps the sound immensly on the outside of the car and even helps the sound quality and tightness on the inside
this..

i've completely dynamatted the trunk, license plate, and rear deck and am working on the doors....the sound quality inside the car has raised tremendously and the rattle outside of the car is almost non-existent...

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You can find an inexpensive alterantive to Dynamat on Ebay by a couple different vendors.
this is also a very viable option...
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post #8 of 24 (permalink) Old 12-10-2009, 06:39 AM
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my trunk rattles like a mother.... when the bass hits you can feel the air hit you in the back of the head from the subs kicking... but yeah the rattling is a pain in the ass, I'd like to get some dynamat, but it's expensive. that would be your best bet if you can afford it.


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post #9 of 24 (permalink) Old 12-10-2009, 07:34 AM
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had my 12's in my car for about 10 mins and i took them out...it rattled really bad i don't know if it was the ss wing or the car being made of plastic but it was annoying so i gave them to the gf lol
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post #10 of 24 (permalink) Old 12-10-2009, 07:43 AM
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For the system you are running, you won't need dynamat right away. The rattle is not bad. My system rattles quite abit, but i dont always blast it loud so it doesnt rattle in that case, and I will be dynamat-ing/fatmat-ing my entire car next spring.
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