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Message: <blockquote data-quote="helotaxi" data-source="post: 7014284" data-attributes="member: 550915">You'll spend more on electrical upgrades to feed that amp than the whole rest of the system.  You don't nearly "need" 3kW.  You don't even "need" 1kW.  More power means more support equipment in the way of wire, batteries and alternators to keep it running.By the way, there is no way in hell that amp linked to could produce anywhere near what it's rated for.  It has a whole 120A of fuses and is a class A/B amp and thus around 70% efficient, best case, assuming a 14V power supply the best that it could do is around 1kW.  That said, that would be plenty of power but getting that power from a class A/B would be dumb.</blockquote>

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