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  1. Roxul "Cavity Rock" any good?

    Home Audio Acoustics
    I've been trying to source Roxul's Rockboard 40/60 in Vancouver area for my dedicated HT/music room. So far no joy. It can be special ordered but minimums are 50 times what I want! However a Roxul product called "Cavity Rock" is available in all sizes from 1" up to 5". From the Roxul...
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