All I can say about the CX upgrade is that I heard enough of a difference to get it! I did not upgrade I traded, but when I first hooked up the FPB-400CX I was amazed!
I have owned several Krell amps and can tell you they sound like shit out of the box and take a very long time to break in. (300 hours min) This thing was musical right out of the gate and only got better. I dont always here the differences in all those flavor of the month upgrades or tweaks but this one sold me.
I have owned several Krell amps and can tell you they sound like shit out of the box and take a very long time to break in. (300 hours min) This thing was musical right out of the gate and only got better. I dont always here the differences in all those flavor of the month upgrades or tweaks but this one sold me.