Recommend speakers for a large living room

Daedalus Zeus.  They demo this model in rooms that size at audio shows.

I wonder if you purchased a decent receiver and set up a pair of speakers for that separate sitting area.  Then turn on and off the remote pair when you want to listen more critically to the two main speakers?  Not an expert on this.  Perhaps you are willing to give up some critical listening and strive to get dispersed sound throughout the room.  Adding some subwoofers would also help distribute the bass throughout the space.

Thanks for all the responses. Some really good information here. To answer some of the questions, my main goal is to ideally have a speaker system that works across most of the living room, specially the 2 sitting areas. Ideally it will sound great in the kitchen while I am cooking, as well as both sitting areas. 

On what music do I listen too, its mostly latin music (salsa etc) & old rock (the beatles, elton john, david bowie etc). I mostly listen to digital recordings.

On which speakers do I like, I currently have 2 other listening rooms (in different apartments). One has B&W 805d2 & the other Sonus Faber Olympica 3's. I used to like the B&W but have grown tired of them, I prefer the musicality of the Olympicas. I am planning on replacing the 805d2's with Focal Diablo Utopias. The big difference is both of this room's are audio rooms, with a specific listening position that honestly is very narrow. For the new living room I was hoping I could use a different kind of speaker to make the listening positions wider - thus I thought omni-directional speakers would work best. 

I could buy a pair of Focal Maestros' which I really love, but they have a narrow listening field. 

On which amp's, cables etc. I have bought nothing yet. My plan is likely buy the same brand as the speakers manufacturer for amp's etc, or just buy McIntosh which I really like.

Just seems to me that if you need to add a sub woofer to your speaker set up, it isn't a good set of speakers set to a good sound system.  I know and have heard what a sub woofer can do, but I would rather have a good system with great speakers that do the trick and not have another box on the floor.

MBL