Hey

In one of my previous cars I did some experimenting and found that adding small sections of deadener did a better job than covering the whole thing. Cleaning and ensuring it was smooth to get the best bond possible also helped. Someone told me it was because I was changing the resonant frequency of the sheet metal in only one spot, but I can't say for sure.

In my last car I removed the spoiler, sounded much better.

Later - J

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Bought a 1993 Chevy Astro, 43,000km's complete service history right to original bill of sale. What I have put in it?
*Focal 330kx
*uDimension 20vs Denon 3560
*Martin Logan electrostatics from Aerius I
*mids -BMI65
*CD900
Keeping Kimber Hero & Silver streak cables and Goertz AG2 and AG3 speaker wire.