@Tanquen , once you've had a bit of time with it, please let us know your impressions of the X6800 vs the X6500. I'm guessing the upgrade was mostly motivated by new features rather than any anticipated change in sound quality? Do you plan to pay for the Dirac license?
Yeah about that, the only reason I got it was for the Dirac live support and the quick media switching, which they unceremoniously removed from this year's models. Even though you can still find pages on the Denon site that talk it up. I'm sure it's out of their control, but every time I get a new AVR it's like I've spent a few thousand dollars on a very expensive HDMI switch, that's not very good at HDMI switching.
So, if I can get $1,000 or so for the X6500H, I will have paid about $3,000 to try a Dirac live.
I already have the Dirac live license. I got the full one with base management when it was 30% off a few days before the AVR even showed up.
I'm a lot more interested in their full active room treatment, but they still haven't made a commitment to support that on this generation's Denon AVRs.
The 4 sub outputs are interesting but I already have two and in my small room I can't imagine for making a difference. I was curious to maybe get one that could go much lower than the two I have now, but depending on what you read it's not really going to do much for you. It also lets you choose the location of the subs to try to play back the bass from the speakers that are closer to it, but I've also read that that pretty much doesn't do anything as lower frequencies aren't very directional.
Other than that, unless something's wrong, I don't expect to be able to notice any sound quality difference between the two, just like the AVRs before these.