Quote:
Originally Posted by goneten  Thanks for answering my question. Here is another one.  How much better, in your opinion, is a 4" 36 kg/m3 panel vs 96 kg/m3 panel of identical thickness ?
Pricing for the 96 kg panels is like R100 per inch ($13) compared to R25 (slighter over $4) for the 36 kg/m3 panels. |
I do not understand what you are seeking. The cheaper product is better. If it is 1% or 50%, it is better. 96 kg/m3 material at 4" thickness is starting to reflect low frequencies. It is not opinion, it is fact. Study the data on
Bob Golds Aborption Coefficients. The data shown for OC series has 96 kg/m3 and 24 kg/m3 material. The 24 kg/m3 has slightly less absorption at 125 Hz, and is 25% less dense than the 30 kg/m3 material you are refering to. Note that the best is with 48 kg/m3 for 4" thickness.
What are you after?
Andre