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Message: <blockquote data-quote="jrwalte" data-source="post: 4722964" data-attributes="member: 584454">Kinetik is definitely better than optima.  Many say Powermaster is better than Kinetik in cost ratio (more for your buck).You could have an issue where your frame cannot support the amount of current for your ground.  I haven't dealth with over 2000RMS myself. You may be better off with 1 or maybe 2 runs of 1/0 dedicated ground wire from engine block/alternator to the stock battery location and then from there to your trunk with spare battery(s).Does your voltage ever drop at odd times?  Say when the volume isn't that loud and you know it shouldn't drop but yet it does? Maybe when the AC kicks on?  A sudden surge of power need with a drop in voltage may be an indicator that the ground is insufficient.</blockquote>

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