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<blockquote data-quote="loopkiller" data-source="post: 5756322" data-attributes="member: 601690">I don&#039;t think he is playing tones, he is playing music. I would expect the drops he is getting from tones, but not music.He has his batteries fully charged and the both passed load tests. Even with his batteries fully charged, he still dims on MUSIC.I don&#039;t think your alt is too small, but there is still a chance that it is defective. If it is defective and needs replaced, you might as well entertain a HO alt.1000W RMSx 80% (efficiency)---------1250W/ 13.8V (average under load)---------90ANow if he is running music, there is no way he is pulling half of the fuse value on that amp. He can clamp the wire to be sure, but I would bet you a whole bunch that his amp is not pulling anywhere near 130A, even playing music at full tilt. He might peak near 100A, but no chance he is staying that high continuous.This is very good advice and something that OP will have to look into when replacing his alt, if necessary.</blockquote>

[QUOTE="loopkiller, post: 5756322, member: 601690"] I don't think he is playing tones, he is playing music. I would expect the drops he is getting from tones, but not music. He has his batteries fully charged and the both passed load tests. Even with his batteries fully charged, he still dims on MUSIC. I don't think your alt is too small, but there is still a chance that it is defective. If it is defective and needs replaced, you might as well entertain a HO alt. 1000W RMS x 80% (efficiency) --------- 1250W / 13.8V (average under load) --------- 90A Now if he is running music, there is no way he is pulling half of the fuse value on that amp. He can clamp the wire to be sure, but I would bet you a whole bunch that his amp is not pulling anywhere near 130A, even playing music at full tilt. He might peak near 100A, but no chance he is staying that high continuous. This is very good advice and something that OP will have to look into when replacing his alt, if necessary. [/QUOTE]

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