I am not sure it is possible with a traditional cone and dome type speaker. As many have pointed out, mono recordings, etc... are going to simply radiate. They are directional.
A speaker that reflects off the room and uses the room to create your soundstage would be your best bet. MBL probably would be your best option as it has a 360 degree radiation pattern but you will likely find that electrostats (martin logan), planar (maggies) and even some of the really excellent ribbon designs (Raidho) will be better at this than any cone and dome speaker I have heard.