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Message: <blockquote data-quote="Lil Poot" data-source="post: 3476997" data-attributes="member: 561892">should be fine but do the big 3 in 1/0 for sure. after you do that, put a multimeter on the positive and negative terminals of the amp and see how much the voltage drops. i'd say if you're dropping under 13v at idle, start looking at an alternator. might be ok with a second battery... but an alternator is the best way to go.FWIW i run my kx2500.1 (same internals as the zx2500) at 1 ohm daily, but i have 2 yellow tops, big 3, and a 240a alternator. my voltage drops to 13.1 going full tilt at idle.</blockquote>

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