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Message: <blockquote data-quote="helotaxi" data-source="post: 3445455" data-attributes="member: 550915"><p>1-4 ohms is an absolutely terrible ground.  If your ground had 1 ohm of resistance between it and the battery negative post you would lose a volt of potential for every amp that your amplifier drew.  Pull more than 4 A and the amp will go into protection.  0.5 ohms isn't really any better.  8A to shut down the amp.  15ft of 1/0 has a resistance of 0.00144 ohms.  That is the kind of ground resistance that you should be looking for.  If you can directly measure it with a standard DMM, it's too high.</p></blockquote><p></p>

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