Audio diffuser

@knighttodd - disclaimer: I haven't actually heard them in my room as yet. I do  have a thread about them, and the claims of use is on the website I listed above.
They look the business lined up, fingers crossed on sound.

@rixthetrick  from what I understand you don't need them for the back wall. That should be for absorption.  Front wall on the ceiling and at points of first reflection. What you are doing is impressive. I don't have the tools to build my own. With the trays it would be about 54 inches tall and 36 inches wide behind each speaker. All in money wise about $240.00.

And 2inches deep. Just to break up the hi frequency. 

@rixthetrick Those look like they will be great. Look forward to hearing your assessment once completed.

Looks like a great design. Like an open folded horn speaker.