Awesome post by the way. I've owned many different brands over the years and I keep coming back to Denon for what I describe as a "warm" sound. I've not gotten that warm sound I seem to like from other brands. But, sounds like you've had other Denon and feel like this particular model sounds even better yet.
I beg to differ with you on this. I find the Marantz line warmer sounding while the Denon sounds neutral. I guess, everyone hears differently.