Will your setup support 7.2? Use the 2s for sides and rears? If not, I personally would not
recommend split centers.
A center speaker, is just that, a "center". Based on the fact that the speaker is physically centered
to the video display. So, unless your room is overly large, I'd stick with a single center speaker.
Otherwise, the sound will skew to either the left, plus center left, or right, plus center right, especially
if you're not perfectly centered to the TV.
Now, that's not to say that you shouldn't use the best center speaker, that you can fit into
position. So, if it isn't too tall, a RM-2 center would be awesome! And, I must say, it's just sick
that you have RM-2's for surrounds, as well as an unused pair of RM-2's! There's something inherently
wrong in that! 626s maybe for surrounds. But RM-2s, that's just sad (and I wish that I could do it too)!!!
I have a LRC for my center speaker, a set of rm40s for mains, a set of rm2s for the surrounds and a set of sealed subs to round out the system. This leaves me with an extra set of rm2s. I was thinking of using these for center channel duty. Does anyone now run a set of speakers for the center channel? I could always use just one but I thought as long as I have it, why not?