Nothing at all, infact they're like new. I had them in my dodge ram for less than a year. Kicker sx650.1 pushing a L7 10 solobaric and the sx400.2 pushing a set of boston pro 6.5's. One problem, i bought a new dodge ram rumblebee and decided to sell the the other truck so i pulled the amps and sub out. I was going to put them in the new truck but i just bought a set of cdt es-073 braxial's which need around 190-225 rms a side. So i need to upgrade the amp and I want to go with us amps all the way around. I'm trying to unload the sx 400.2, and up until now didn't know what i wanted to do. I will probably be selling the sx650.1, sub, and alpine 9815. I just know that i'd like to change it up and go with US AMPS. Who knows i may just upgrade to the kicker sx900.2. The digital options are menu are just amazing really, but man decisions decisions decisions.
