Many systems are installed in living rooms, family rooms or basements and have to contend with challenging room dimensions, budgets and spouses. For those reasons, my current setup is 5.1(2 subs) and was once a 7.1 setup as well as a 5.1.2 setup. Up firing atmos speakers were not working for me. If I had a big rumpus room and an even bigger budget, I would be sportin’ 7.2.4. Is there a dedicated theater build out there with only 5.1?\n\nYes indeed, we all do have compromises to make. I’m fortunate to have 7.3.4 in my LR but it’s also not perfect. Some things I won’t concede to, but others I have made agreements with my wife for. We usually work it out. \nYes, there are definitely dedicated 5.1 builds out there. I have two other 5.1 systems in my house but they’re definitely NOT dedicated lol. However, people are still doing them. Another thing I’ve noticed is that Atmos tracks played back in 5.1 systems still benefit from the newer mixing techniques. Can’t say exactly why, but I notice better “movement” and imaging with at\nIs tracks even on 5.1 systems.