Hi. I was out for quite some time but now with a new project. Probably a silly question but better safe than sorry. Currently I have a 5.1.4 setup in my house @ Puerto Rico (all concrete). I'm using my .4 with M3s as FHR/FHL and RHR/RHL mounted to the front and backs walls. So nothing in the ceiling.

Now I'm buying a house in Florida that will include a Game Room / HT Room. Already with some wiring on ceiling. So I was thinking of using my M3s as TFR/TFL and TRR/TRL mounting them on the ceiling.. but don't know if it is safe to mounting those speakers on the ceiling as they are kind of heavy using the Full Meta Bracket. I'm also adding a Sony projector to the ceiling as well. But as you know ceiling is not concrete as in Puerto Rico so I need to know if the ceiling will hold all those 4 M3s bookshelf + my new projector.

Please advise.
-Jose


M80
VP160
HSU STF2 Sub
4x M3 In-Ceiling
QS10H Side Surr.
QS8 Back Surr.
3x Monoblock Amps, DEN-X4300