Okay, I'm sure some of you are not going to agree with my direction based on the comments about the Denon 3600/3700 test results, but I decided to order a New with warranty Yamaha RX-A3080. Went that route to take advantage of BB 24mo zero interest and based on my prior refurb experience I was gun-shy on that route. Also it's much easier to deal with BB locally for returns if there is an issue. Should get it around the 10th.
This will give me a basic setup of:
Sony X950H 65" monitor
Yamaha RX-A3080 receiver
Canton SL 596.2 main L/R speakers
Canton SL 556.2 center speaker
SVS PC-2000 sub (although I'm sort of rethinking this one in favor of a few others)
And DefTech Promonitor 800 rear surround and front upper effect speakers (until I can upgrade them later to matching cantons)
I'm running basically a 5.1.2 setup at moment with the front atmos speakers wall mounted rather than ceiling. I'm intrigued with the speaker top 500 series atmos speakers from canton though, as I'm guessing they would replace my front wall mounted speakers.
On the sub-front, I'm back thinking about smaller 12" or 15" sealed dual subs but that may not be the best route with the ported cantons.
Sorry, I know I'm all over the board here. I'm done with upgrades for now unless I exchange the sub. This will allow me to get the old receiver and front 3 deftech speakers into my garage gym, along with the deftech prosub 800 once I get it repaired.