Okay which one of these items would be the most helpful to my car audio system. I have between my sub and speakers about 1750 watts being put out by my amps. I have thought about capacitors, an aftermarket alternator, and a battery like an Optima Yellow Top, or maybe something else. What do u all think i should do? Obviously if a got a capacitor i would need a 2.0 farad or two 1.0 farad capacitor, what should i do. I prefer the cheapest, but most effective way possible