posted
I would say it lowers it. Damping material inside a box slows the wave down so it should have the same effect in the cab. In my truck I peak at 66hz no matter how my seats are arranged (forward/backward). When I take them out I peak at 70hz.
I haven't put any dampening material in my truck so I can really tell you how that effects it. I'm sure it can't be as dramatic as removing both seats.
posted
What really sucks is, no two cars seem to react the same. It made my CRX lower, raised my Yukon, made no difference in my Transport. I would suggest the metal backed products or the spray that drys hard. Those seem to help the car emulate a like surface while eliminating energy robbing vibration.
Did you get another car perhaps?
Posts: 1674 | From: Michigan | Registered: Nov 2002
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Tim, No I don't have a new car, the insurance company decided to drop $9,000 to fix my car, I don't know if I want to keep it or not, I have a 99 Malibu but it's not a very reliable car
posted
Well I got my car back and I found out something, the Damping did lower my note I had about 100 ft^2 feet of mat in the trunk of my car, they told me they cut off the rear section of my car and put a new one on so all the mat is gone , I went to my boy's house that had one of my old boxes we extended his speaker wire and put the box in my car and guess what happened My car peaks at 44hz now instead of 41-42Hz now I have to find some stuff that spays on and dries hard
posted
I dropped 3 hz when I did my sound deadening.
-------------------- If there's anything worth doing, it's worth doing right!!! Db Drag STREET B Currently 2nd in Canada certified spl and points. Posts: 16 | From: Edmonton Alberta Canada | Registered: Jun 2003
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posted
I have a friend in the truck bed-liner industry, and I can apply the stuff at cost. Select Products told me that the bed-liner is not the same as thier sound deadening material, so I'm wondering[before I spend the money] if anyone has put the stuff head-to-head.
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