I have broken two so far and I'm not really all that hard on my car (well, I redline every once in a while *wink*) I broke my first one testing it @ the dragstrip, I replaced it (ford part) and it broke again.


*Rides*
-1999 Ford Contour SE Sport
stock ATX, best time 16.66@81mph

Pioneer HU, door speakers
Pair Cadence Ultra Drive 12s
Sony 1000 watt Class D amp

Kills:
Rockford 12" HE2 (exploded.. blew out 3 in a row, gotta love best buy protection plan :P )