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<blockquote data-quote="RandyJ" data-source="post: 1126172" data-attributes="member: 557626"><p>Well look at the maximum current draw from either amp and add them together. The recommended max for 4awg is 150A I believe. Remember though, as long as you are not running the amplifiers at maximum all day long (you wont be unless you are competing, and even then, the a/b amp wouldnt come into play), you wont be reaching anywhere near the maximum current draw.</p><p></p><p>Just a little hint though,</p><p></p><p>P=IV</p><p></p><p>I=P/V</p><p></p><p>Assuming 14.4V constant,</p><p></p><p>I=750/14.4</p><p></p><p>52.08A</p><p></p><p>@ ~70% efficiency:</p><p></p><p>52.08(.3)=15.624</p><p></p><p>=67.704</p><p></p><p>Idealy, assuming my math is correct, the amp will pull a max of ~70A at full capacity, and there is no way that the a/b will pull the extra 80A if it is only rated for 120wrms.</p></blockquote><p></p>
[QUOTE="RandyJ, post: 1126172, member: 557626"] Well look at the maximum current draw from either amp and add them together. The recommended max for 4awg is 150A I believe. Remember though, as long as you are not running the amplifiers at maximum all day long (you wont be unless you are competing, and even then, the a/b amp wouldnt come into play), you wont be reaching anywhere near the maximum current draw. Just a little hint though, P=IV I=P/V Assuming 14.4V constant, I=750/14.4 52.08A @ ~70% efficiency: 52.08(.3)=15.624 =67.704 Idealy, assuming my math is correct, the amp will pull a max of ~70A at full capacity, and there is no way that the a/b will pull the extra 80A if it is only rated for 120wrms. [/QUOTE]
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