What did you mean by that? To be clear the X4300H replaced the X4200W, and the X6300H replaced the X6200W. The SR7010 fits somewhere between the X4200W and the X6200W, so the SR7011 would likely sit somewhere between the X4300H and the X6300H. D&M seemed to have make an effort to make sure we can no longer compare exactly apple to apple like we used to be able to do a few years ago.
I looked at these when I did my AVR bakeoff earlier in the year. I ended up choosing the x4200W instead of the Marantz. What I haven't seen any discussion on that's probably the culprit in the price difference is the difference in the "brands". If I buy a GMC truck I will pay more money than if I buy the exact same truck as a Chevy. The guts of the truck are the same: parts, design, yadda yadda yadda. Yet each brand has its fans and folks who will swear one is better than the other.
Marantz is a long time brand that's been able to charge a premium and make a nice living at it.
Denon is a long time brand that also charges a premium, just not as much as Marantz.
That's why I think as a single company it works: they are similar but just a shade different.
The difference for me was the port hole on the Marantz instead of a nice full panel display on the Denon.
@PENG is correct (in my opinion) , there's no difference to the way they sound. There are some subtle feature differences, like the port hole. I like the display on the Denon better and that's something I actually see and use. If I had my drothers, I drother have a Marantz because I've had Marantz envy since the 1970's. But, when push came to shove, I am not paying that extra $700 to look at a port hole.