I have a somewhat cheap Denon for 5.1 audio and after the initial sound setup, I've never needed to touch the settings other for adjusting the subwoofer volume. It's mostly Apple TV -> AVR -> TV, but I got other inputs like a PS4 and a PC for music. And it has Airplay, Bluetooth and Spotify Connect for anyone that wants to play from their phone.

There's no need for a super-complicated setup for good sound.