Interesting!
That looks like one heck of a receiver.
However, and this might be more than a matter of pedantic semantics (to paraphrase words spoken in another thread) I'm wondering about Denon's use of "7.2 channel." Especially being a proponent of multiple subs.
I (and I guess others - like Towen7) distinguish between the number of subs used, and the number of discrete LFE channels. The ability to connect two subs (as a convenience feature), where those subs receive the same signal, does not, in my mind, take a system from a 7.1 to a 7.2. All its doing is moving from an external user-supplied "Y" adapter to a receiver-provided internal one. However, if those sub outputs were distinct, and could carry independently different signals, then I would bestow the 7.2 label.
An example would be where the room correction software could vary, independently, the level and response of each sub output, in order to better smooth out the room response using two subs. (I do this in my main HT through the use of different subs (inherently different responses), each with independent level control, placed in different locations. A less elegant brute-force approach. But since I'm starting with the same 7.1 sources and my Onkyo still only provides a 7.1 output capability (after which I split like crazy to feed multiple subs their bass-managed signal / LFE) I still refer to the overall system as 7.1-capable.
I've looked through the Denon's owner's manual and spec sheets, and while they extol the virtues of running dual subs in order to smooth out the bass response within the room, it does not appear that, for example, its Audyssey system is treating the LFE as two independent channels and using them thus for room correction. So I take (a bit of an) issue with their use of the 7.2 designation, rather than what I think should be 7.1 in this case.
(I note that when specifying its Dolby Atmos capabilities it uses 5.1.4 and 7.1.2 - which seems spot on. But that raises the question as to where did that extra LFE channel go? Does it get lost in an Atmos set-up (with one sub output going silent), or is it just a tacit admission that there really is only a single LFE channel (as opposed to connection) regardless of configuration.)
Do I get the pedantic semantics award of the day?
Jeff