Acoustic Panels vs covering walls -> seen some builds covering all walls, but only 2" thick with no air gap? Thought this was a no-no? | AVS Forum
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Timber Acoustics® Soundproofing Acoustic Panels, Rockwool Safe 'n' Silent Pro, Acoustic Room Treatment, 20"x40"x3", NRC= 0.90(SET OF 2) (Beige) : Amazon.in: Musical Instruments
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