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Would it not be better to use heavier insulation? I'm thinking, for under a desk, some high density slabs cut up and stacked to form a suitably sized cube.
Surely the problem with this idea of a roll of insulation is...
A) "wool" style (or loft lagging) insulation doesn't have much mass so is pretty poor for anything but higher frequencies.
B) if its wrapped up in a poly bag, its efficiency is reduced for higher freqs.
I'm looking for some correction of my understanding if I'm wrong about this!
regards
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