OK heres my problem. I have the Alpine 9813, Alpine components, JL 500/1 hooked up to a pair of 12W3V2s. I am also running 4 gauge wire. Keep in mind I am only running the one amp. I have a Tsunami 1.0 farad cap hooked up too, but I am still getting a good amount of headlights etc. dimming when I turn the volume up past like 20. Sometimes I even blow the in-line fuse, I have gone through about 6 of them since I had everything professionally installed over the summer. Should I get one of those Optima yellow tops, do I need a new alternator too? Will any of those things stop the dimming? On top of that, the subs seem to not hit as hard after I have been listening to my system loud for over an hour. By the way, I have this all in a 1993 Buick Riviera, not exactly the common car to have a system in. Anyway I am open to everyone's input. Also feel free to comment on my system and/or car. Peace.