Getting a strong center image should be child's play for two speakers - and is on my system.
I want my soundstage to be much more than that though. Yes, a sharply defined centre vocal of a believable real size... but with its own space free of the next instrument on the soundstage. Then the other instruments on the stage extending well past the left and right speakers with their own individual space. Every instrument in 3D space detached from the speakers. I use my 5.1 HT's center and surrounds when listening to 2ch music. Love it. Love the localisation of each individual instrument and singer.
I want my soundstage to be much more than that though. Yes, a sharply defined centre vocal of a believable real size... but with its own space free of the next instrument on the soundstage. Then the other instruments on the stage extending well past the left and right speakers with their own individual space. Every instrument in 3D space detached from the speakers. I use my 5.1 HT's center and surrounds when listening to 2ch music. Love it. Love the localisation of each individual instrument and singer.