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Roscal · 10-13-2005, 03:55 AM

You're right, the lower the frequency is, the stronger/heavier the material should be (more energy to dissipate). Some sound absorption sheets are made of a sandwith of different density material to work on a wider spectrum.

10-13-2005, 03:55 AM	#17
Roscal Cooling Savant Join Date: Apr 2002 Location: North of France Posts: 198	You're right, the lower the frequency is, the stronger/heavier the material should be (more energy to dissipate). Some sound absorption sheets are made of a sandwith of different density material to work on a wider spectrum.