Quadratic Diffusers

Someday someone is gonna figure out how to make one doesn't look like a science project. Until then: HFT.

That one looks great. I have no experience with it but... IRT diffusers, my experience is they can improve the soundstage to a remarkable degree. They added clarity & detail to my system, which was already very good. I made my own (40" X 30") and have it centered on the front wall behind/between the speakers.

Here is a link for a guy in Michigan who sells "kits", if you are so inclined.

https://www.ebay.com/itm/323062665096?hash=item4b38090f88:g:4RMAAOSwmRVfc0ra
   

Thanks folks. Two interesting options. I think I'd rather find plans and save the money on the kit by buying it all myself. If that would work out, $$ wise.