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Originally Posted by Arksun  Is this true even if the fabric isn't breathable at all?. If so I'd be tempted to get a much denser tighter weaved fabric for making DIY bass traps, as I'm only concerned with it absorbing frequencies much lower than 500hz and am worried about sensitivity to any mineral wool escaping. |
In fact, a dense reflective material is better for bass traps than porous fabric. But only when the bass traps are in corners, or otherwise away from reflection points.
--Ethan