I got some Kappa 3015LFs that I intend on putting in a fEARful 1515/66/1 once I get the 6" speakers. So in the mean time I have a Kustom 2x15 cab with speakers that are pretty lame. They sound great, but they have such little power handling it's barely usable for what I do. So my question is can I replace those speakers with the Kappas for now. I know I physically can, but will there be any problems such as a full range signal going into it. Will I be missing a ton of tone in the 1.5 to 4khz range? Another note is that the cab has a tweeter if that makes a difference. Thanks guys, I really hope this can work. I need a good cab to last me till I have money for the 6s.