types of wool

Room Acoustics Forum by Rives Audio

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Hi,
my room is treated with FRK corner traps all around.

60 Hz is still should be tamed - it's 15-20 DB louder than 55 and 65.

all other frequencies are OK (incl 90 and 120).

i'm thinkin to implement Ethan's advise and covers also all ceiling/wall corners.

i found a source for acrylic wool which has NRC of 0.85 (0.45 at 125 hz and 0.49 at 250 hz) - which i guess is quite good, isn't it?
what puzzles me they say that according to their measurement it's equivalent to rockwool at dencity 4.5pcf and to fiberglass wool at dencity 1.5 pcf.
so are those 2 types of wool really behaves so much differently?

Thanks,
Gennady

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Kimber Kable

Topic - types of wool - Croc 11:52:34 02/03/09 (3)

RE: types of wool - Ethan Winer 12:14:42 02/03/09 (2)

RE: types of wool - Croc 13:34:38 02/03/09 (1)

RE: types of wool - Ethan Winer 12:20:40 02/04/09 (0)

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