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Old 9th August 2020
Lives for gear

Low density mixed with high density


I have a pallet full of 75kg/m3 Rockwool that I would like to use for treating a small control room. I will build floor to ceiling 30cm deep traps on back and side walls. My plan is to put one layer of this rigid rockwool closest to the wall and put a thick layer of fluffy on top of it.

Looks good in the calculator but are there any other issues I should be aware of? Impedance etc?

I know I could do the full depth with fluffy but it would be great if the rigid/semirigid stuff could be used here.