Re: Lights dimming from 500 watts?
To produce 500W with an 80% efficiency, the amp will draw about 45A @ 14V. Chances are that your alt doesn't have that kind of headroom, first, and it needs time to adjust its output, second, and the amp isn't that efficient, third. Depending on current draw, you can dim the lights with a lot less power than that. First thing is to make sure that your charging system is healthy. If you want to go to up to a 1000/1 you should be shopping for a bigger alt, as well. Adding a battery with a high surface voltage might help a little with the dimming from there as might a good sized cap.
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