Id like to have the option for playing the same music in this room to another but perhaps I’m over engineering it. I could just have a Wiim Pro connected to the Denon x3800H and then buy a cheap amp to serve the other room with another Wiim Pro connected to that.
Buy a second Wiim Pro and hook that one up to the Denon for the second zone.
Do you think the Fyne Audio speakers would benefit from a power amp in addition to the Denon or do you think the Denon would suffice for both movies and music?
NO!!!! Absolutely not. You do NOT want to use the Denon for music unless 2-channel is not important, and I think your Fyne speakers deserve better. The beauty of the setup I described above is that the Denon is COMPLETELY out of the signal path for stereo, which is what you want. The amps in the AVR are subpar and its preamp section is even worse and will kill your stereo sound quality. If you care about 2-channel in this system go with the setup I listed above.