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Replacement For Fiberglass in 2Pi [message #51525]

Tue, 30 October 2007 19:57

Beltway Bandit
Messages: 8
Registered: May 2009

Esquire

Is it a 1 for 1 swap between the 1 inch of fiberglass as specified in the 2pi directions and 1 inch of polyester batting? Would an open cell acoustic foam that PE sells work too?

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Re: Replacement For Fiberglass in 2Pi [message #51527 is a reply to message #51525]

Tue, 30 October 2007 22:11

Wayne Parham
Messages: 18791
Registered: January 2001

Illuminati (33rd Degree)

If the cells are large enough, open cell foam is much more acoustically transparent than fiberglass insulation. It's what some use for speaker grilles. I think probably the small cell stuff is more absorbent, but I haven't made any measurements to see.

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