First of all when a speaker or amp states it is rated at (lets say 2500 watts max), that just means that it can handle less then a milisecond of surge power like when you first turn on the amp or speaker, it is always a good idea to assume that your amp or speaker can handle or produce less then 1/4 of the max rating unless otherwise specified. RMS power is almost always way less then max ratings, Try to match RMS ratings on power amps with RMS rating on speakers. Example AMP 300 watts RMS speaker RMS 350 to 400, this way you help avoid blowing your speakers.