Hey guys! Been having problems with my sound system recently. I got two Sony 10s and a Rockford Fosgate 400s amp along with a 1.0 farad capacitor. The stereo was working just fine until I went to pull up to get some gas. Once I started up the car again, no bass. I don't know what's going on. Less than a week ago the same thing happened and we replaced my old Sony Amp with the RF amp. That time, the old amp went bad. Now, I have no idea as to what's going on. Does anyone have any suggestions?