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What is the function of capacitors? how are these "caps" hooked up? when do you need them and do you always need them?

 
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Takin a guess here..

But when you start going over 500W RMS you might want to consider it.. and or if your headlights start dimmin to sound of the beat..

 
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Waste of money, upgrade your wiring and battery if the lights are dimming. I have over 1500 w rms no stupid cap just 1 gauge wire and stock battery.

 
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Answer the question guys

Capacitors store energy in them when theyre charged up. They are used because they can release power to an amp quicker than a stock electrical system in your car which will cure the dimming lights etc. A good cheap solution to a factory stock car with a small system.

 
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The only problem is that capacitors store a very small amount of power. A battery holds the equivalent of 2200 Farads. A small car stereo battery mounted in the trunk would be a much smarter move.

 
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Thats why i said its cheaper for small systems with a small amount of power

 
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Its not really worth it, a cap doesn't really stop you lights from dimming, the only thing they are really good for is if you have 2 quick base note together that require alot of power. But since the cap drains in a split second all is does is add another item to your cars charging system. You would be better to run a secondary battery or a larger alternator.

 
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i'm still loss..so does it make the system bump harder??

 
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a cap is basically a fast charge/discharge battery. With a high drain system when power is used from the battery it cause other accessories to lack power hence the dimming. But with a cap the power need for the amp is store in the capacitor and doesnt strain the battery. But honestly i dont think there that important. I used to run 2 1000 watt amps on a canadian tire battery and a stock single cam alternator and never had any problems. Obviously the lights dimmed a bit but nothing major.