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Message: <blockquote data-quote="06stxf150" data-source="post: 2679784" data-attributes="member: 573060">Well most of what you said seems to be true anyway.As far as ohms go,Yes!It would be more efficient to get an amp that does its rated power @4 ohms rather then 1 ohm because as the impedance drops the characteristics of the amp change as you get closer to a direct short.At the same time you will have 900 watts either way which turns into current draw=Amps.No matter what you do it will affect your cars charging system.What really matters is how efficient your amp is at reproducing the signal.That is were Class D comes in.Class D my have alittle more THD but it will take less from your cars charging system make it happen.So A/B = about 40-60% efficient and Class D= about 60-90%...Someone else care to put some funk on it.........</blockquote>

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