Hrm,\n\nLooking at the 1080 vs the 5015, the 5015 has the bigger power supply, otherwise, similar features for my purpose. So maybe the 5015 is the better choice?\n\nMy mains are around 90db sensitive (3 x identical towers) and my surrounds are a bit less at 88~89db or so (bookshelf) and the room size is going to be what a double garage usually is, but finished as a living room (a 2nd living room dedicated to audio), so around 24 feet x 18~22 feet depending on finalized options and I'll wire the walls. So shouldn't be a challenging room, a rectangle, 8~12 feet listening position distance. So I don't think I need much power to get loud. 90db sensitivity near a wall, single speaker, 12 feet to listening position will hit around 101db SPL at 100 watts as a peak, so maybe a bit more with several speakers and some room gain. Plenty loud, though would like more headroom for transient peaks (not hitting THX spec unless I move seating closer). 8 feet puts me at 105db. But that's assuming a lot of things. So, I won't be able to push past that without going discreet on amps anyways and it would have to be at least 200 watts just to get +3db, so I'm not going to stress that.\n\nVery best,\n\n\nHow did you compare power supply spec?