how big a speaker can you put in an 11 x 11 room?

Thanks....I presently have Virgo IIIs which do a nice job, though, i have become a huge fan of the Elipsas and the Revel SAlon2s so I have been ready to upgrade...but I dont think either will lend to the room...though I am a big fan of nearfield listening..the Elipsas are warm...in a room this small they may be a bit heavy...

OHM Micro Walsh Talls

My room is a 11X12X9'ceiling(huge)and I have Revel 50as+a revel 50a centre speaker,I'll put it this way,
I have four component racks(full 3X7bssts+2X4Bssts,cdr,cdp,clearaudio championII TT,2-Torus units,Arcam prepro av-8 and Arcam-139 dvd,and 2X Velodyne DD-15s.the racks take up the one wall with just enough room for the mains,I have one sub almost halfway along one wall and the other almost behind the couch.I like what I'm getting for sound,but I'm sure with a bigger room it would be way better.when we do get a bigger house,I know I'll be ready.

how big a speaker can you put in an 11 x 11 room?

You will want to stick with small monitors + a small sub with that sized room. If you go with a big speaker, it just means you are going to have big problems in that very small space.

Depends how big the door is.