Beta, yes. I haven’t compared the 70 to the 90 and my journey is detailed above in a few prior posts. I’m not convinced the 90 would be any better for movies but possibly for spatial music and 2CH playback. If given the opportunity I’ll certainly jump at the opportunity to try one out!
A few quick photos this morning before heading to work. Note the unorthodox sub placement, that’s how they measured best and running beta ARC blended them brilliantly.
Lovely interior and I like how you've maintained symmetry. A very neat and clean layout, well done!
From what I can tell it's a 5.2.2 system, is that right? - I have not noticed any rear wall speakers.