
UTILIZATION
I would say that the general config/setup is very simple. If you have ever used even the most basic mixer and the most basic combo amp, then you should be totally fine. If you zero all the knobs (12 o'clock) the sound is pretty decent. It only takes a little tweaking of the highs and lows for me to get the sound I like. I puchased my KC 550 used and didn't get the manual. However, I have never come across anything on this amp that would make me need it.
OVERALL OPINION
I have had this amp for 1 1/2 years. What I like most? It has stereo connections for a single speaker. That comes in very handy when you want to use this amp as a PA speaker but only have one (good for DJs). I also like how light it is for its size. Its not a feather but its the same size as some other solid state amps I own but weighs a good 20 or so lbs. less. What I don't like? It could be my speaker is going bad, but I feel the amp cannot handle low end frequencies very well. It starts to make some bad distorted sounds on some of my "bass" keyboard patches. Overall, this is a pretty decent amp for someone who wants the power and the simple mixing options with out having to lug around a whole PA. If thats not you, spend your $600 on a nice powered PA speaker, and when you can spend that much again, get the other one for the pair. I also own a really nice set of EV powered PA speakers and they suit me much better. Infact, I might be selling my KC 550 just because I never use it any more.