Speakers for large open room

Thanks for your responses...I listen to classic (orchestral) 90% of the time...vinyl 75%. Components are Rega P-25 with Grado, Sony SACD 777ES, either Audible Illusions pre/Pass Aleph3 or Magnum Dynalab 208 receiver (100WPC).Will probably buy used at up to 3k...Also, this is a bright/hard room with wood floors/oriental rugs. Thanks again.

P.S. I presently am driving B&W Matrix 804's...

Yagbo12...I'd have to give up my new flats boat for the Avantgardes! Would anyone consider Vandersteens for this room?

Thanks for your responses, and to you Duke. Corner placement is not an option. Speakers could be three to five feet out from walls.