I’d definitely recommend either quadratic diffusers or something like GIK Alpha panels. The latter have the advantage of providing both scattering and some bass trapping, if you get thicker ones.
Absorption, Diffusion or a combination of it all?
Looking to add more acoustic treatment on the wall behind the speakers. Currently using GIK absorption panels (242).
Planning to add two more panels that would hang pretty much directly behind the speakers on the upper part of the wall (higher quality image on my system page).
Any benefit going with diffusors?
Thanks!!!