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<blockquote data-quote="sexy" data-source="post: 8039573" data-attributes="member: 612355">The only way someone could tell you what is happening is if they were able to be there and test with a DMM. What I can tell you without seeing you set up in person is that although there are quite a few companies that claim their alts will do 300 amps they have no proof of it. The highest output alternators on the market are also the ones that require the most RPMs. If an alternator bench tests at 300amps cold then it will only do about 240amps at best under the hood of a car due to heat loss.12.5/12.7 drops can come from lag time also. That means that your alternator has to react to a large demand in thousands of a second like when the bass hits. Once the alternator sees the demand it ramps up to that demand and that can easily explain the drop you are seeing.You will have to test with real test equipment while playing test tones to see if an alternator is keeping up or not. Music and no test equipment means nothing to people who know their electrical platforms.</blockquote>

[QUOTE="sexy, post: 8039573, member: 612355"] The only way someone could tell you what is happening is if they were able to be there and test with a DMM. What I can tell you without seeing you set up in person is that although there are quite a few companies that claim their alts will do 300 amps they have no proof of it. The highest output alternators on the market are also the ones that require the most RPMs. If an alternator bench tests at 300amps cold then it will only do about 240amps at best under the hood of a car due to heat loss. 12.5/12.7 drops can come from lag time also. That means that your alternator has to react to a large demand in thousands of a second like when the bass hits. Once the alternator sees the demand it ramps up to that demand and that can easily explain the drop you are seeing. You will have to test with real test equipment while playing test tones to see if an alternator is keeping up or not. Music and no test equipment means nothing to people who know their electrical platforms. [/QUOTE]

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