If your center channel isn't improving the quality of your soundstage, you're system isn't set up correctly. (Your other channels play a privital role as well, but one step at a time)
Stereo Imaging
I think I've written about this before, but I wonder how many of us who use the same system for HT and music get fooled into suspecting the center channel must be generating the center image. I was playing the Abkco disc of "Let It Bleed" and found myself compelled once again to put my ear to the center channel to assure it was not generating the strong centered image I was hearing. Intellectually I knew it wasn't because I've tested it before, but the image is so strong it creates a cognitive dissonance. In a world of 7.1, I'm afraid I forget just how effective stereo can be in generating a soundstage.
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