The improvement in soundstage lies in a change of speakers. You mention that the "room is good",so we can assume that battle against reflections has already been won.
I suggest the Morrison Audio point-source omni-directional Model 17: these speakers should quickly solve your problem. They deliver the richness and depth of a recording, and you'll know where all the instruments and vocalists are located.
I suggest the Morrison Audio point-source omni-directional Model 17: these speakers should quickly solve your problem. They deliver the richness and depth of a recording, and you'll know where all the instruments and vocalists are located.