The C-J MF 2500 has a lot more power than the X150, correct? I have the 2500A, my all-around favorite amp so far that I've owned. I also have a MF 2250 (non-A) that is a great little amp as well. These can both be great deals on the used market right now. Oh, yeah, I like the McCormack DNA .5 & 1.0 also; some real deals on those, esp. if you don't go too crazy with the "Rev. alphabet soup" & maybe just get an original or Delux.
Good luck!
Good luck!