Looks great, PDR! Thanks...very helpful.
I have floor-to-ceiling corner traps now and a tapestry on the rear wall behind the listening chair. I wonder if I were to point the null, created by the dipole drivers, at the first sidewall reflection points if absorption there would be unnecessary. There are a lot of diffusion products out there, mostly expensive, that probably would work.
Has anyone tried deflecting, rather than diffusing, the rear wave by using a board angled in such a manner that the speakers are not visible through a mirror placed on the front walk? Robert E Greene suggested that, instead of absorbers, on sidewalls in order to creat a RFZ of sorts.
Al