never run a pioneer amp (x962 780w) and one pioneer ts304c or you get this!

 

That means that you were not using the proper box (dimensions) for that woofer.

In my experience that is not a "too much power" problem

 

the box recommendation was 1.2 cubic feet and my box was a tad under that still the guy at pioneer told me that i was pumpin the sub way to hard..... although SPL wise it was up there with my friends 15 inch MTX thunder 8000 in his 3rd gen... oh well im going to get 2 of these bad boys and pump em just less wattage and more proper box sizing. oh well it was great for the 2 days it lasted !!! turned alot of heads with one 12!!!!!