Sounds like the wiring configuration may have been wrong, but amp level seems pretty high, and Clipping could have been a factor, along with banging the S H I T out of it with no air circulation also,ect,Bad Install/Fail.Get your amp tested, to see if its fine, and actually pull the subs out, and check the wiring configuration, and check the info on the sub magnet see what ohms they are see if you wired them correctly.Maybe you will smell the damaged woofer by then/find an issue there.Get the amp tested out at a local shop with a meter, to rule it out..prob wouldnt cost more than $30,some charge nothing at all.Pull your subs out of that Box you got, check them out.Read up on here on setting your gains,ect.,and ask questions if needed.//content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif