I have one of the cheaper Denons, AVR-730H if my memory is correct. With Heos, it has the capability to play different sources to not only zone 1 and zone 2, but also to the Heos speakers. One thing I don't like about it is the lack of tone control and subwoofer output on Zone 2.
Although this is one of their cheaper AVR's (under $400), it does just fine in HT usage. It even does fairly well in 2-channel, putting out 75 wpc with 2 channels driven.
I have used it with RF7-ii, R28-F, and Infinity Reference Threes. It is a little lacking in power for the Infinity's, (they are 6 0hm and low sensitivity) but only at exceptionally loud volume. I can go to reference level on the other speakers without clipping.
Oh, I don't have to turn it off to switch sources. I control it with an app on my phone (Heos app)