I'm looking to upgrade my AVR to either a Denon 6700 or maybe a Marantz 8805, possibly the Emotiva XMC-2 due to Dirac. I already have a pair of emotiva 7 channel amps, and I'm mainly looking to upgrade so I can add top middle atmos speakers, not that I need it, but I have the ability to easily install them in my theater room, plus the amp channels already, so why not? My amps don't have XLR, and I don't care about that, I'm only running a 3 ft. RCA cable anyway, so long runs and noise are of no concern. It will be a couple years until I can do anything real upgrading anyway, so till then I'm very pleased with my current setup, I just want to add a second sub.