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compress 32kg/m3 rockwool?
Old 11th August 2018
Gear Maniac
capoeira's Avatar

compress 32kg/m3 rockwool?

7 years ago I made basstraps with 16 panels of 32kg/m3 rockwool.
Now I am about to move home to another state. taking those traps with me would cost too much (since I would prefer to make new ones with denser rockwool anyways).
So I started thinking about selling them when I had the idea to take those panels out again and compress them. would that work? If I make a wooden box and compress them in it to half the thickness what will happen to them when I open up the box again after a while? they are semi-rigid
Old 18th August 2018
Here for the gear

When you remove them from the box, they will be uncompressed again. The general idea is that when used inside your wall, they won't sag (much) in decades...

I thought absorption panels should have low density to absorb the lower frequencies? Why go denser? Again, I am really a beginner in acoustic treatment, forgive me if I'm wrong...
Old 18th August 2018
Gear Maniac
capoeira's Avatar

Originally Posted by bib_ak View Post
I thought absorption panels should have low density to absorb the lower frequencies? Why go denser?
have to have dense panels for low frequencies. obviously not that dense that the waves reflect: (PDF) THICKNESS, DENSITY AND POROSITY...
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