Kicker DX700 Car Audio Amplifier Recommendations

i had a fosgat power 800 hooked up to two fosgate dvcs and thought it was loud.i sold that amp, bought the kickerdx700 and it ripped the surround off one of em in about 3 days. so i turned it down about 3/4 of the way and it blew the other surround right off in about another week. the thing i dont get is that i had the fosgate turned all the way up and it never made my subs move like the kicker did. now i hooked up a jlw7 to it and i cant even find words to ecplain how loud this thing is