Blurb says they are 100% polyester.Hey,
Looks like they're filled with PET or something like that. With that thickness, I'd say they have an absorption coefficient of 0.5 to 0.7 in the high mids. A few of those wouldn't hurt if you like the look, but for proper treatment there are for sure better ways.
Aaron
+1Might elminate some flutter echo, but that's about it.
Might eliminate some flutter echo, but that's about it.
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