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Message: <blockquote data-quote="jrwalte" data-source="post: 4535573" data-attributes="member: 584454">Depends. An amplifier will draw more amperes in order to maintain the same wattage at the lower voltage as you were pushing at the higher voltage, providing you weren't pushing the amp to its limits. If the amp is at it's RMS limits, then the more voltage the more wattage output (I suspect this is because an amp has a max amperes limit it can handle in conversion to AC?). If your amp isn't at its limit and if your battery can't provide the extra amperage (your alternator already can't because that's why the voltage is dropping to begin with), then yes, it would be affected.Does your voltage idle at 12ish with the music off or low or only when it's loud?</blockquote>

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