Originally Posted by ScottieBoysName
I’d really like to hear the results of this. I keep hearing everyone rave about diffusion over absorption. Love to see what you think.
There’s been a lot of talk of diffusion adding “spaciousness”.
To make a long story short, so far I like it. At the moment, I have the back wall treated with bad panels of offset depth, the ceiling clouds treated with BAD panels, and the side wall treated with various forms of BAD panels. When I say BAD panels, I mean that I have covered my current traps varying from 6-9" thick with the templates drilled from 1/4" plywood.
The rear wall and ceilings were a no brainer for me. My room was overly trapped with broadband absorption. The rear wall was slatted with MLS slats and the ceiling clouds were bare. Adding the BAD panels in these areas has helped retain the high frequency energy in the room. Did it make it "spacious"? No, I don't think so.
The fun part so far has been experimenting with the side walls. For kicks, I temporarily placed BAD templates covering the entire side walls and guess what happened? Magic. Magic happened. I guess it's safe to say that I am in the Toole camp and that I enjoy early lateral reflections. I don't want to use too much audiophile jargon, but if I had to describe it, it was like lifting a blanket off the high frequency details and they spread not only laterally, but also wrapped around, more in three dimensions. Some may call this imprecise, but I don't care. It is far more enjoyable to my ears than absorbing all the early reflections. And the stereo image is very much intact. I don't hear things smearing together. It is only an enhancement of the boundaries and details.
At the moment, I am experimenting with various forms of arcing the templates into polycylindrical-like shapes. I'm not ready to make a judgement on that yet, although I have some early impressions...