In Reply to: RE: Damping material for Altec 817A horn posted by kef on March 14, 2023 at 08:40:00:
Foam is the least effective, being of the lowest density. Also note that pyramid foam consists of air in between the peaks, so it's effective thickness is much less than it appears to be. Then comes cotton, then mineral wool.
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Follow Ups
- RE: Damping material for Altec 817A horn - Bill Fitzmaurice 10:29:08 03/14/23 (0)