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Message: <blockquote data-quote="Buck" data-source="post: 4928100" data-attributes="member: 591582">So my understanding now is that more efficient amp are easier to power.  Like using less power as say a similar wattage amp but still putting out the same watts.  I have a nine.1 right now.  its efficiency is 67% which i don't believe is very efficient at all. my lights dim a lot.  so what are some efficient 1500 watt or 3000 watt amps?i was looking at the sundown 1500 and 3000ds.   are these efficient?  any help would be greatly appreciated.</blockquote>

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