Would center channel benefit audio only room?

To learn more about the benefits of a 3-channel audio-only setup, check out:

Trinaural website @ Spread Spectrum (Ampzilla2000)

and

The MilesTech website

onhwy61, the room size is 14 X 20, the ceiling is vaulted 8' at it's lowest level. My speakers are 3 way custom utilizing a Heil AMT tweeter. The soundstage is 3D left to right all the way across the room, but it is only 4ft tall.

"My speakers are 3 way custom utilizing a Heil AMT tweeter."

Hmm. All bets are off with such an unknown but adding another speaker to these won't elevate the soundstage (unless you put it near the ceiling).

Kal

Kr4, center channel near the ceiling is doable.