Ya I looked at all that... and I turned down the bass on the amp, Still the clipping occurs!!! So what els do you think could be the problem?.... Also im putin this in my hatch, so there is no ****ing way that little battery is gona power all this ****! Im thinkin run a deep cycle batery (in the back) paralel to the one in the front and get a 1.0 feride power capasitor (CAP) for the 500/1 and a 0.5 capasitor for the 300/4... whataya think? do I still need an alternator upgrade?