I did drop in on the other thread, but do agree with these guys. IMO, you should be able to run 5.1.4 with that4400 and unless you’re really running the system super loud you’ll be fine. Now, if you discover after spending some time listening that it sounds like the AVR is running out of steam, then you should consider amps. Until then, I would just spend some QT with the system. And impressing your wife! Lol.