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<blockquote data-quote="audioholic" data-source="post: 7383846" data-attributes="member: 549629">80 amp alt. 80 amps x 14.4 volts = 1150 watts. Factoring in for amplifier efficiency, the alt cant even cover the potential pull from just the subwoofer amplifier, let alone the rest of the stereo, headlights, ignition system, AC, etc.The reason the system worked... semi-acceptably... for a couple months, and then failed, is because system voltage kept getting worse and worse. Im 100% confident you have been over taxing your battery, since the alt wasn&#039;t capable of handling the current draw. Not only has your sub been damaged, but probably your amplifier too, and the batt, and the alt. The smoke you saw from your woofer is probably just the tip of the iceberg of the problems you have created. The main thing now is, to learn your lesson from this mistake, move forward and not make the same mistake again.Im known around here for preaching about &#039;over building&#039; your charging system. Hopefully some people reading this thread will understand why now, and not just the OP will learn a lesson from the mistakes described in this thread.</blockquote>

[QUOTE="audioholic, post: 7383846, member: 549629"] 80 amp alt. 80 amps x 14.4 volts = 1150 watts. Factoring in for amplifier efficiency, the alt cant even cover the potential pull from just the subwoofer amplifier, let alone the rest of the stereo, headlights, ignition system, AC, etc. The reason the system worked... semi-acceptably... for a couple months, and then failed, is because system voltage kept getting worse and worse. Im 100% confident you have been over taxing your battery, since the alt wasn't capable of handling the current draw. Not only has your sub been damaged, but probably your amplifier too, and the batt, and the alt. The smoke you saw from your woofer is probably just the tip of the iceberg of the problems you have created. The main thing now is, to learn your lesson from this mistake, move forward and not make the same mistake again. Im known around here for preaching about 'over building' your charging system. Hopefully some people reading this thread will understand why now, and not just the OP will learn a lesson from the mistakes described in this thread. [/QUOTE]

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