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- Nov 26, 2002
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From seeing the picture of the deteriorated foam in the lambda above, I wouldn't bother replacing it. Acoustically, this kind of foam has virtually no effect (it has such large pores), even in 2-3mm thickness.
My guess is that this was there to act like a filter against large debris, but probably not so much for its damping properties.
My guess is that this was there to act like a filter against large debris, but probably not so much for its damping properties.