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<blockquote data-quote="mat3833" data-source="post: 8842505" data-attributes="member: 587645"><p>No, just no. None of this is correct. The math has already been done, the solution has already been given, please don't bump posts with incorrect information like this.</p><p></p><p>Matt</p><p></p><p></p><p>Edit:</p><p></p><p>I'm going to take a minute to apologize and try to steer you in the right direction for the future. Audio has evolved alot and continues to evolve.</p><p></p><p>The 1-5 farad caps have proven to do nothing more than be a waste of money, you really need large caps called "supercaps" to have any positive influence. Maxwell is a common name-brand supercaps used now. </p><p></p><p>The simplest way to calculate current demand for a car stereo is to follow this general structure:</p><p>1. Identify factory alt amperage(100a in this case) </p><p></p><p>2. Identify current required for added stereo using this formula: rated wattage of amp(s) divided by 12. Since this is a 3000w amp, you would divide 3000 by 12 and get 250a. This isn't an exact method, and some people prefer to use slightly different formulas, but this formula has worked well for me. </p><p></p><p>3. Identify available alternator or battery upgrades to support the additional current draw. Batteries add reserve capacity once you exceed the alternators output, alternators add extra power before you hit reserve. </p><p></p><p>In this case we need to add an additional 250a of power for this situation. Everyone has their own method for "best" making up this difference, so I'm not going to go into the specifics here. </p><p></p><p>4. Install everything and enjoy your music.</p></blockquote><p></p>
[QUOTE="mat3833, post: 8842505, member: 587645"] No, just no. None of this is correct. The math has already been done, the solution has already been given, please don't bump posts with incorrect information like this. Matt Edit: I'm going to take a minute to apologize and try to steer you in the right direction for the future. Audio has evolved alot and continues to evolve. The 1-5 farad caps have proven to do nothing more than be a waste of money, you really need large caps called "supercaps" to have any positive influence. Maxwell is a common name-brand supercaps used now. The simplest way to calculate current demand for a car stereo is to follow this general structure: 1. Identify factory alt amperage(100a in this case) 2. Identify current required for added stereo using this formula: rated wattage of amp(s) divided by 12. Since this is a 3000w amp, you would divide 3000 by 12 and get 250a. This isn't an exact method, and some people prefer to use slightly different formulas, but this formula has worked well for me. 3. Identify available alternator or battery upgrades to support the additional current draw. Batteries add reserve capacity once you exceed the alternators output, alternators add extra power before you hit reserve. In this case we need to add an additional 250a of power for this situation. Everyone has their own method for "best" making up this difference, so I'm not going to go into the specifics here. 4. Install everything and enjoy your music. [/QUOTE]
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