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B Quiet Extreme or Dynamat Extreme?
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<blockquote data-quote="FoxPro5" data-source="post: 6633928" data-attributes="member: 562649"><p>You cannot <em>eliminate </em>noise, esp in a car.</p><p></p><p>1 lb/sqft of anything is good for about 25 STC. Blocking noise is frequency-dependent. That means, there's no such thing as a broad-band blocker of noise. Long waves easily refract (bend) around stuff...MLV included.</p><p></p><p>Also, CLD mat performance is temp dependent. DX is good for about .4 DLF at room temp. As you go higher or lower it's damp-ablility drops FAST. Roofing materials like B-Quiet are not dampers, they are roofing materials. Don't put them in your car unless you car is on your roof. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif</p><p></p><p>Search the tech terms listed if you're unaware of what they mean. I aint gonna spoon feed ya. Independent research is ohh so fulfilling to those that want to learn.</p></blockquote><p></p>
[QUOTE="FoxPro5, post: 6633928, member: 562649"] You cannot [I]eliminate [/I]noise, esp in a car. 1 lb/sqft of anything is good for about 25 STC. Blocking noise is frequency-dependent. That means, there's no such thing as a broad-band blocker of noise. Long waves easily refract (bend) around stuff...MLV included. Also, CLD mat performance is temp dependent. DX is good for about .4 DLF at room temp. As you go higher or lower it's damp-ablility drops FAST. Roofing materials like B-Quiet are not dampers, they are roofing materials. Don't put them in your car unless you car is on your roof. [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] Search the tech terms listed if you're unaware of what they mean. I aint gonna spoon feed ya. Independent research is ohh so fulfilling to those that want to learn. [/QUOTE]
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