deadner help

[i2ain2thunder 10+ year member]

Don't know haven't had that happen yet.

 

[ewoevo 10+ year member]

I'm looking basically do the same thing to my tC in the coming weeks. I was giong to go with Sound Deadener Showdown, but that's pretty steep. I'm still trying to decide which route to take.

 

[LosIsATool 5,000+ posts]

We got some tC love in here.. Have you still not heard that metal on metal sound I told you about a few weeks ago? The one from the heat plate under the trunk.. I think the **** think is rivited so deadening is out.

 

[ewoevo 10+ year member]

Yes we do!

 

[ewoevo 10+ year member]

OP , let me know how your search goes. I'm narrowing my choices to: SDS, AT, & Fatmat.

 

[jtomsic 5,000+ posts]

well im ordering about 50sq ft of audiotechnix 60mil tomororw morning before i leave, i have a CCF i bought, have a good bit so far if i need more I will go get it locally like I did this time... so when i get back.. im going to have a lot less rattles //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif hopefully will pick up some output!

 

[denim 5,000+ posts]

I'm looking basically do the same thing to my tC in the coming weeks. I was giong to go with Sound Deadener Showdown, but that's pretty steep. I'm still trying to decide which route to take.

Actually when following the SDS methods, it is not steep. People have to get out of this blind mind set of more is good and more layers is better, when it has been shown that is clearly not the case. Work and buy smarter not harder.

 

[Rudy 10+ year member]

Actually when following the SDS methods, it is not steep. People have to get out of this blind mind set of more is good and more layers is better, when it has been shown that is clearly not the case. Work and buy smarter not harder.

That really only applies to noise reduction and SQ applications. For a pure SPL project, sound deadener (vibration damper) is always a mistake. You've got two mechanisms working against each other: viscoelastic converts vibration to heat with an offsetting slight stiffening of the panel. It will also seal air leaks, but it's a really inefficient, expensive and hit or miss use of the wrong material. We've all seen posts from people reporting a slight increase in SPL after applying vibration damper and others reporting a slight decrease. This is why. Stiffen panels and seal leaks without converting sound energy to heat and you will always increase SPL. Use vibation damper and it can go either way.

Interestingly, asphalt isn't viscoelastic so it would be a better choice - if there weren't reliability problems and you're satisfied with half-assing your project - slap stuff on and hope for the best. Maximizing SPL comes down to science, no less so than any other technical pursuit. Stiffen panels to resist deformation and seal air leaks directly and you will always do better than someone who doesn't. If I were an SPL competitor, I wouldn't use any of the products I sell. I'd also be highly skeptical of nonsensical claims made for similar products.

Think of it this way: These things are called "sound deadeners". That's exactly the opposite of what you're trying to accomplish for extreme SPL.