I just blew my second subwoofer in like 2 weeks... the first one lasted about 8 months, now my second one lasted a week... i got the same subwoofer both times. Could there be a screwup in my wires or something? or is it because this subwoofer came from walmart

http://www.pioneerelectronics.com/pn...677103,00.html

by the way i have a rockford fosgate 200 watt amp powering it.