Running two MC275's in mono

I am considering changing speakers and getting some tidal audio piano ceras. I am worried that my MC275 VI edition, does not produce enough power. Accordingly, I am considering getting a second MC275, and running them in mono. However, while I can find other MC 275's on this site, I cannot find the same edition I have. I assume it would be a bad idea to run different editions of the MC275 in mono?