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General Car Audio
Can my ground be 3ft for my amp?
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<blockquote data-quote="JohnKuthe" data-source="post: 8551054" data-attributes="member: 670903"><p>I meant to post (but it didn't show up as posted):</p><p></p><p>You should as I did check your selected ground against a good cable to the neg post of the battery. I bought some 4AWG jumper cables which I needed anyway and now I have some. A good ground should have ZERO resistance between the neg battery post and your selected grounding point, IOW they should be electrically identical. When I measured my suspect grounding point I got 0.3 Ohms but I still had weird unexplainable amp heating even before I had any inputs into the amps! So I had my installer guy install a 0AWG cable to the neg battery post identical to the 0AWG +12V to the pos battery post and THAT cured my weird amp heating problem. (And I can't explain why, and I'm an EE by degree!)!</p><p></p><p>John Kuthe...</p></blockquote><p></p>
[QUOTE="JohnKuthe, post: 8551054, member: 670903"] I meant to post (but it didn't show up as posted): You should as I did check your selected ground against a good cable to the neg post of the battery. I bought some 4AWG jumper cables which I needed anyway and now I have some. A good ground should have ZERO resistance between the neg battery post and your selected grounding point, IOW they should be electrically identical. When I measured my suspect grounding point I got 0.3 Ohms but I still had weird unexplainable amp heating even before I had any inputs into the amps! So I had my installer guy install a 0AWG cable to the neg battery post identical to the 0AWG +12V to the pos battery post and THAT cured my weird amp heating problem. (And I can't explain why, and I'm an EE by degree!)! John Kuthe... [/QUOTE]
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Can my ground be 3ft for my amp?
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