So I was just driving down the road today and decided to crank up the Glassjaw on the CD player. The alpine HU was turned up to a volume of 14. Its been there before without problems and then bam! the the sounds shuts off. I reset the HU with a pen that was in my car. Next thing I know it the left front speaker is popping. It was a 6x9 MB Quart speaker that was blown. At least I think it is blown. Getting to the point, I was wondering if you could offer me any advice as to what I should do: talk to MQ Quart to sese if there is any hope there, talk to who I bought the speakers from, if not is there a way to buy just one speaker? And last but not least it looks like I will be investing in an external amp so point me in the right direction. I want quality that's affordable if that's even possible and won't be running a sub. -Thanks, Brian.