I second what Donny (DNJ) said. Roland KC amps, IMHO, have a rawer, harsher sound than a PA type amp. I definitely hope you are dealing with a reputable dealer. And I suggest you try many types of amps before buying. As a child of the 60s, I find that sometimes I even like the sound of a good guitar or bass amp instead of a keyboard amp. If you are using the amp for keys and vocals, maybe a PA system would be a better fit.