I had a pair of 6.5 cdt 2 way speakers, where the tweeters burned out. and now i have a pair of cdt 5.25 components where one of the mids burned out on me. I did use the passive xovers they came with. also put about 50watts rms to each side off a ppi pc450 (1 channel for each components). i'm getting fed up with this..what's going on?