Cant take credit for it. smile here's the recipe.

https://www.gearslutz.com/board/attachme...poly-panels.pdf

I havent put anything behind them yet. Going to wait and see what the absorbers do first. They are next up.

The new response plot isnt really anything revelatory, as expected. The combination of the doors on the room and polys has made the room sound "worse". I think its the doors just holding energy in the room more and not a lot of absorbtion yet. Dont get me wrong, it doesn't sound bad, just not as defined as before. I wonder if the rt60 went up. Should test.