You made a pretty substantial upgrade to your speaker system, have you played any movies in just regular 5.1 or 7.1 without using the atmos upsampling. It would be interesting to see how you felt about the 7.1 speaker upgrade using your previous receiver. I know when i buy something new just he excitement makes a perceived improvement, not that i am saying that is the only thing going on here
. So glad to hear all your hard work is paying dividends.
As for the sub i would try backing it down a bit and see if that changes anything. How Anthem handles dual subs really intrigues me, i wish dirac did the same. Sadly 3g is above my paygrade.