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<blockquote data-quote="roots7" data-source="post: 93585" data-attributes="member: 544801">haha 4000 watts you are a fiend. If that alternator only pushes 55 amps, youre ****ed. Even if it pushes 200 amps, you&#039;re not going anywhere. 4000w/14v = 285 amps needed at 100% efficiency(which I guarantee you the audiobahns dont approach). If they are each 80 percent efficiency, which is about average for class d, you will need 357 amps(or 7 times what you have). You cant even use one of those amplifiers with your stock system. You need a 400 amp alternator(or 2 200 amp ones) and upgraded wiring and all that shit if you are even going to consider puttin both of those in. I say get a 200 amp alternator and use one amplifier and sub and those comp sets.&nbsp; A cap wont do anything for you. Frankly it doesnt matter how much your car&#039;s electrical system takes up because thats not going to be too much compared to these beasts.You probably should have thought of this before you bought the godzilla system. Unless you are competing, 4000 watts is overkill in a geo metro. Look around for high-output alternators on the internet.</blockquote>

[QUOTE="roots7, post: 93585, member: 544801"] haha 4000 watts you are a fiend. If that alternator only pushes 55 amps, youre ****ed. Even if it pushes 200 amps, you're not going anywhere. 4000w/14v = 285 amps needed at 100% efficiency(which I guarantee you the audiobahns dont approach). If they are each 80 percent efficiency, which is about average for class d, you will need 357 amps(or 7 times what you have). You cant even use one of those amplifiers with your stock system. You need a 400 amp alternator(or 2 200 amp ones) and upgraded wiring and all that shit if you are even going to consider puttin both of those in. I say get a 200 amp alternator and use one amplifier and sub and those comp sets. A cap wont do anything for you. Frankly it doesnt matter how much your car's electrical system takes up because thats not going to be too much compared to these beasts. You probably should have thought of this before you bought the godzilla system. Unless you are competing, 4000 watts is overkill in a geo metro. Look around for high-output alternators on the internet. [/QUOTE]

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