36" W x 15.5" D and I'd say the bottom of the panel is 4" off the deck. I've wall mounted my set (and had planned to post some details on that) so I have an "extra" stand. Note that the panel does pivot plus or minus maybe 10+ degrees (again just a guess but roughly).
There was no real wobble that I noticed in the set on its stand at the local showroom. My room is 19' x 19' and the 20' span is supported (improperly) single 2x10s on 12" centers. A couple of years ago when my (then) 300 pound plus brother brought his Connect over... Well... a trampoline comes to mind. The floor deflects a serious 4" and items around the periphery angled inches off the walls. It was scary. Needless to say there is now a temporary lolly column and a brace in the basement across the underside of the room. A more permanent solution is on some ToDo list somewhere.
The point is... this panel on the stand would had I had it then have toppled over! It is heavy and would have destroyed itself let alone anything in its way. For me, the wall mounting is a much better place for it. Now I am sure that none of you have the floor issue like I did/do. I wish that I had some high-speed photography. It would have gone viral.
Oh, and the nice component cabinet that the store has theirs on is listed at like $3000! I decided to save the bucks for an AVR upgrade or something. Besides, if you are a renter, you pay for square footage, the wall space is FREE!