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<blockquote data-quote="FoxPro5" data-source="post: 4736867" data-attributes="member: 562649">Either CLD mat or a liquid on the roof to reduce structure-borne noise in the sub 250 hz region. Large flat panels act as sound boards that can actually amplify sound forward. Turning this sound into heat is what you&#039;re after.Same thing goes for the floor (not sure what &#039;tub&#039; is? Spare tire well??), but in this case add a barrier decoupler to block noise transmitted from the road, your exhaust, other cars....that will just go right through those &quot;deadened&quot; panels.It&#039;s all right here: <a href="http://www.earsc.com/HOME/engineering/TechnicalWhitePapers/FourFold/index.asp?SID=59" target="_blank">http://www.earsc.com/HOME/engineering/TechnicalWhitePapers/FourFold/index.asp?SID=59</a>Why aren&#039;t professionals that do noise containment for a living using CCF? Where is Ensolite mentioned in that article?? Do the laws of physics change for the vehicle? Who&#039;s anecdotal evidence is draining your check book??</blockquote>

[QUOTE="FoxPro5, post: 4736867, member: 562649"] Either CLD mat or a liquid on the roof to reduce structure-borne noise in the sub 250 hz region. Large flat panels act as sound boards that can actually amplify sound forward. Turning this sound into heat is what you're after. Same thing goes for the floor (not sure what 'tub' is? Spare tire well??), but in this case add a barrier decoupler to block noise transmitted from the road, your exhaust, other cars....that will just go right through those "deadened" panels. It's all right here: [URL="http://www.earsc.com/HOME/engineering/TechnicalWhitePapers/FourFold/index.asp?SID=59"]http://www.earsc.com/HOME/engineering/TechnicalWhitePapers/FourFold/index.asp?SID=59[/URL] Why aren't professionals that do noise containment for a living using CCF? Where is Ensolite mentioned in that article?? Do the laws of physics change for the vehicle? Who's anecdotal evidence is draining your check book?? [/QUOTE]

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