I am selling one of my 3515's. There is nothing wrong with it. I am just trying to get a whole new setup. It has only been used off a Fosgate 800a2 for about 2 months. It is dual 4 ohm. You can check it out here: http://www.ddaudio.com/dd/caraudio/woofers.asp?series=3500d
I am asking 350 + shipping.




I am asking 350 + shipping.




