The "c" can be run with the Cast cables from Krell with one of there Cast preamps. The "X" is an "improved" version of the FPB line. When comparing I noticed a little refinement and better treble in the "X" version. I have not heard the Krells run cast. Both are very good amps. (X or Not)
KRELL FPB vs FPB cx
Whats the difference between these two models? Does one sound better than the other, the cx looks nice with the black faceplate. Thanks