I've never been in a forum like this. I couldn't figure out who or how to follow anyone to post. That being said, I have a 3 level home. I bought a Yamaha RX-A880 Amp at suggestion of an installer I've used for 20 years. Right now I would like the the Living room to be my home theater. I have Artisan wall mounted speakers on sides of 2019 65' LG OLED C9 and a Polk Audio center channel with an Acoustech sub with 1000 watt amp of its own. My problem seems to be I don't know how to make it work with 7 MusicCast 50 speakers. I think I have to use a device on wired speakers to make them controllable in MusicCast App? I use 2 50's as rears. The other 5 MC speakers are 2 upstairs, 2 downstairs and 1 in kitchen. It's great for streaming. I get good volume coverage throughout the entire house. But I don't know how to bi-amp or use maybe use Living room as main zone. I feel like I have som e decent equipment but my installer has moved and I refuse to call Geek Squad. I think I can get a lot more for the money I've spent. I find the Yamaha AV controller nice for switching receiver functions. But I'm lost!! I have no idea what any of thesethings mean at bottom of page. I learn by trying and failing. Sorry!