Hi Michael,
Unless you sit exactly in front of the TV, running a virtual center doesn't work well; even if you do sit in front, never to either side, you still don't have control of the center channel dialog volume, a major liability, especially with movies or TV shows where the dialog has been mixed at too low a level (quite common). With a virtual center, if you happen to sit to either side, then the center-imaged audio will collapse to the speaker nearest you, moving the music/dialog away from your video display to the M80 nearest you. Highly unsatisfactory.
Using two M22s to each side of your video display is a big improvement because at least it gives you independent control of dialog levels, but the center dialog will still shift to one side--to the M22 on the immediate left or right of the TV--if you are viewing off-angle. In my judgment, that would be an acceptable compromise if you absolutely can't put put a center channel above or below the flat screen.
Regards,
Alan
