Date: May 07, 2001 at 13:50:14 From:Richard Greene, [136.1.1.101] Subject: Fiberglass WILL absorb bass energy
If fiberglass did not absorb bass energy, then it would not be of any use inside sealed enclosures.
While it is true 2-3 inches thick fiberglass will not absorb much bass, fill up a ported enclosure with fiberglass or polyester stuffing and you'll see how well 2-3 feet thick stuffing absorbs bass.
If it was true fiberglass absorbed little bass under 200Hz.,as you wrote, that would be another reason for not adding stuffing to a ported enclosure.