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<blockquote data-quote="loopkiller" data-source="post: 5673098" data-attributes="member: 601690">First things first, no capacitor is needed for powering your amps. You already have plenty of caps in the amp already.1) What you need is to reinforce your stock wiring. That is called the Big 3 in the car audio word. Check the sticky at the top of this section. Also with that amount of power, you should really think about a dedicated ground wire from the amps to the front battery. The wire should match the power (POS+) wire you ran for those amps. If you do not run a dedicated ground to the battery, at least run your amp grounds directly to the frame rail.2) Next check the voltage at the amp input when you are playing music at idle. If you are seeing drops of more than 1/2 volt during bass notes, you may need a better battery up front. (I would highly recommend a quality AGM battery, NOT an Optima. There are plenty of good brands out there. Kinetik, Deka, Odyssey, and others all make good products. Find your best deal and you will be fine.)3) Next step would be to test the voltage with the engine revved to about 2k RPM. If that does not fix the voltage drops, then you need an upgraded alternator, about a 200a HO alt is recommended.4) The next and final step would be to add an additional battery closer to the amps. This should only be needed if you are running over 2000W RMS.</blockquote>

[QUOTE="loopkiller, post: 5673098, member: 601690"] First things first, no capacitor is needed for powering your amps. You already have plenty of caps in the amp already. 1) What you need is to reinforce your stock wiring. That is called the Big 3 in the car audio word. Check the sticky at the top of this section. Also with that amount of power, you should really think about a dedicated ground wire from the amps to the front battery. The wire should match the power (POS+) wire you ran for those amps. If you do not run a dedicated ground to the battery, at least run your amp grounds directly to the frame rail. 2) Next check the voltage at the amp input when you are playing music at idle. If you are seeing drops of more than 1/2 volt during bass notes, you may need a better battery up front. (I would highly recommend a quality AGM battery, NOT an Optima. There are plenty of good brands out there. Kinetik, Deka, Odyssey, and others all make good products. Find your best deal and you will be fine.) 3) Next step would be to test the voltage with the engine revved to about 2k RPM. If that does not fix the voltage drops, then you need an upgraded alternator, about a 200a HO alt is recommended. 4) The next and final step would be to add an additional battery closer to the amps. This should only be needed if you are running over 2000W RMS. [/QUOTE]

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