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Yea I used it on my truck. It works BETTER than Dynaman and is cheeper. Plus it comes in a roll which is alot more convienient.
Dynamat is just a brand name and is one of the worst ripoff's out there. All these products are is a Butyl membrane (think Butyl tape used in window glazing) with a foil layer on it.
yes but people with too much money that walk into a stereo shop will buy it.
for the old car i got the leftovers of a shop roll of brown bread (still had around 100sq/ft) for $100. i did my trunk and gave the rest to a buddy. it worked very well. i had another buddy buy 120sq/ft of E-dead for $200 off e-bay. it is almost identical to brown bread. he had 60sq/ft left over, so he gave it to me to do my "new" car
To quiet my car down I actually went to a Lowe's hardware store and picked up a roll of Heater Insulation.
I know you are probably thinking - wtf - but its a special type with an aluminum backing, and foam under it - with adhesive on the foam side. This stuff has worked wonders - and its about 15.00 per roll - 15 sq ft. and its easily accesible at a hardware store.
making a solid plate of metal heavier is less likely to vibrate which tends to reduce transmittance. I wonder if resilient channels would work only micro size.
It is more difficult to refect sound than it is to absorb it.
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