RFZ Broadband Absorber With 32kg/m3 Rockwool

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Originally Posted by alecamp

Hi, friends.

If I´m going to build 4" thick broadband absorbers to put on the reflection points, can I use 32kg/m3 rockwool or should it be denser?
Building it with 48kg/m3 rockwool would make significant difference?


Thanks

At 4" thickness, 64 kg/m³ is about optimum. The lighter material will provide less low end absorption. Some people companies user denser material due to handling ease. The difference is not major. If you are going to order the material, why not order the better stuff?

Densely,
Andre