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line the inside walls with clay and or duct seal which is like clay but used for sealing electrical conduit. You can find duct seal at Home Depot in electrical isle. usually bottom shelf. its very dense, just like clay, easily moldable and allows u to push into areas you cant get dampening sheets. every speaker enclosure set up I do , I line with as much duct seal as I can fit. then fill enclosure with insulation like rockwool. polyfill isnt dense enough to have as much of an effect. Id avoid blue jeans type insulation and similar products bc its actually too dense and will take up airspace and choke off the midrange.
So there is no problem with the Duct Seal melting / running in the pod when exposed to high heat? I know the Home Depot website says it is good to 350 degrees F, but I never really believed it. Thanks.
 
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