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Old 05-16-2013, 04:45 PM
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Default Ground loop isolator??

are they worth getting? what brand should i get. What do they do? what amperage should i get and what does the amperage matter as far as the isolator goes?

Probably would put this on my sundown 125.4 not sure if i even need one just wanted to see
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Old 05-16-2013, 05:42 PM
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I used one once, it solved the problem, but like wheresthebutta once told me "you're simply hiding the problem, not fixing it" and he's a sq beast. Is a quick fix, but not the "right" fix. I used the ones from crutchfield I believe. They're simple items.
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Old 05-16-2013, 05:54 PM
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the thing is is that i dont have a problem i just was unaware of how they worked or if it would take my very little noise and turn it into no noise... i dont have any alt whine but a VERY faint amp signal noise.... i thought they may be a good addition for sound quality.... just wasnt sure about them. also, what about the amps they are rated for? waht does that mean
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Old 05-16-2013, 06:11 PM
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They won't get rid of your noise floor. They provide a "clean" reference ground for the signal which can eliminate alternator whine, pops, chirps, and other electrically induced noises. GLIs aren't really rated in amperage, as the signal current is extremely low. There's inline power noise filters that are necessarily rated in amperage. Those are just capacitors to filter a/c ripple on a d/c line. Different thing altogether though.

My take on GLIs: while it's always best to have the fewest possible components in your signal path, the reality is that there's a ton going on electrically in a car. In most instances of noise where all they typical stuff (wires routed and terminated correctly, etc.) is addressed, they can be lifesavers and will not add any audible degradation of the signal. There's no reason to preemptively install one though.
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Old 05-16-2013, 06:27 PM
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ok thank you all so much... i will probably hold off on that then... they are very cheap but no need to get one if not needed
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Old 05-16-2013, 07:07 PM
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I have like 3 of them and I never knew what they were for.
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