Very nice and clean setup. Any reason why the subs are pointed sideways?

I see. Interesting. You would probably get more kick from wall reflection if you place it the way they describe. But then will lose the clean look a bit.

Wow very nice place you got. The additional .2 are the ceiling speakers used for rear surround?

Hmm the ypao on my v465 gets all speaker SPL to within 0.5-1 dB delta excluding the subwoofer which is always lower because of reverberations in my untreated living room.

Agree on REW.

The nanoAVR and nanoAVR HD don't use DIRAC though.

I'm using a sony x85e and ARC multichannel works but with lossy compression. It's a bit finicky with the order in which devices are turned on and off and you'll need an adaptor / bend certain pins in case you have several HDMI devices connected or the ARC won't activate correctly. When it works, I'm satisfied with it.

Both devices need to be eARC capable to enjoy the benefits but it is backward compatible on paper. How well it works I don't know but if it's anything like ARC, it can be pretty frustrating.