I am going to be slayed for this but my old system was a Samsung 60 inch plasma, Polk TRI 4 mains and matching center, Polk Monitor rear and Parts express 10 inch sub with a Oppo 103D dvd, Apple streaming box, and Fire 4K, and the previously mentioned Dennon.
New system is Polk Reserve R200 mains, Polk Ri 4 rear, SVS 1000 Pro sub, same streaming but it seems that my new screen will handle some of that and keep the Oppo for now. Also new stands and some room correction. Yes it will be a 4.1 setup.
Been playing bass and working in recording studios for a terrifying 50 years. Also live in a real rural area so looking at new stuff is difficult.