How well do these work? Are they worth the $$?
Any experiences w/ them?

 

I'm not sure about the Dynamat Speaker Kit, but if we are talking about Dynamat, you can make it by going to a hardware store. Buy "rubber mats," and some spray glue. Just make sure it sticks on the surface good. It's cheap enough to give it a try.

The idea is this.

Tap the body of the car with a metal object, hear the sound. Now put a "rubber mat" tight against the surface on the metal side. Now tap on it. Hear the difference in sound. Now try taping on the surface with the rubber mat on the metal side, but not tightly against the surface. hear the difference if it's not "glued" tightly.

I use the term rubber mat because it may be made of differenent material. A good hardware store will carry many.

Also, if you do, you'll have to use a lot of it, cause sound and noise is all over the whole car. So unless you are doing the whole floorpan of your car, you may not get the full effect against road noise. For what it's worth, my opinion is that it's not going to make the quantum difference as they claim. Manufactures spent many hours on how to make the car more quiet. It's more than adding a mat.

I looked into it and got this idea when I was thinking ways of sound proof my car a bit, when I had custom exhaust.

 

The Dynomat Speaker Kits are a ripoff. If your going to do it, you have to do it right. The best way to go is get a roll of Brown Bread. This stuff is prettymuch identacle to dynomat extreme, and less than 1/4 the price. I bought a whole roll (70sq ft) for $160, and used all of it (thats a good 30-40lbs for people concerned about weight). The whole trunk (2 layers), front doors, under the rear seat, and front floorboards and wheel wells.
Stock Integras have awful roadnoise. They did this to save weight and reduce costs. Think of how quiet a Lexus or a Benz is, this is because of all the sound deading tar they use under the floormats, and in the wheel wells. I am even thinking of doing the hood, almost all nice cars have an insulated hood.
The difference is noticable, less rattles, quieter road noise, less pinging off the thin steel doors, deeper more solid bass response. Heres the website...
http://www.b-quiet.com/brownbread.html

 

this is wierd..the forum stated that dc24me had the last post on this topic but i don't see it here.

can u answer my q dc24me? i remember reading one of your posts on this subject before but i couldnt find it using the search.

 

Actually, I deleted it.

Honestly, I posted something raving about Dynamat Extreme being so easy to use, effective and kickass, then I read Cru's message and learned about the brownbread, which is virtually identical, but less money. That stuff is expensive. My roommate is getting three 39 sq.ft shop packs (I think there were 39..) at $250 a box put into his car. Fortunately, I can get the real stuff for a fraction on the price for my own use

The problem with Dynamat is that is a term applied to any type of adhesive resonant control material. Like Kleenex (tissues) or Armor All (vinyl/rubber protectant)

But regardless of whether it's Dynamat Extreme or it's generic Brownbread alternative, you MUST use it with any install, especially in the doors. you want to make the door as solid as as possible to a set of home speakers. Speaker enclosures shouldn't be metal, but we don't have much of a choice. That's why we need Dynamat. Gotta get that midbass.....



[Modified by dc24me, 11:38 PM 7/20/2001]