Quote:
avaserfi wrote:
 I was under the impression membranes increased absorption for lower frequencies due to the vibrations that occur when they hit the membrane. This is why a faced material is chosen for the specified application as the thick wool will take care of the higher frequencies allowing for the membraned fiberglass to only need to absorb the lower frequencies. |
The size would need to be greatly larger for this to make a difference that is comparable. The space behind the panel is what is most critical in lower frequencies. This works but only if they are not huge, in which case the Mrs will not need to approve something even larger on the wall.