Posted by Bob Brines [ 148.63.220.187 ] on April 18, 2005 at 21:47:25:
In Reply to: Internal Damping Material posted by FredT on April 17, 2005 at 10:18:56:
I line all of my boxes with Armstrong #420. It is much easier to work with than batting or loose fill. I find that a single layer on the four walls eat anything above 500 Hz. It cuts with a knife, holds its shape and with a little 3M #77, it stays put. Of course, I work with pipes and BR's. Stuffing a sealed box is a whole 'nother thing.
Bob
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