I bought some lanzar max pro 10s from a flea market going out of business, so there was no warranty implied. I wire them up to an alpine mrp-500 and hit the highway, well about 10 mins later i smell electrical fire. I pull over and the sub on the right the cone had fallen in and was smoking so i ripped it out of the box and threw it on the ground. 30 seconds later you could have cooked hotdogs for about an hour. I drew a crowd at the car wash