I'm picking up 6 tomorrow from the original owner, and will post my experiences with them.
MSR Acoustics 3D Diffusers
Anyone have any experience with or knowledge of these? I'm wondering if they work for diffusion. There are two models: Trifuser-SA 3D Diffuser that does high frequency diffusion combined with mid-frequency absorption, and Trifuser-S 3D Diffuser that does HF diffusion and low frequency absorption. I'm mainly interested in the diffusion feature since already have Real Traps in my room.