Christobyl, while I agree with you on most things, I beg to differ with regards to the wholesale condemnation of bi-polar equiped amps. While it's true mosfet amps generally tend to sound more like tubes, that doesn't necessarily mean that, that's correct or that all bi-polar equiped amps "sound bad". As matter of fact the c-j 2500a you speak so well of has bi-polar output transistors.