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<blockquote data-quote="IDSkoT" data-source="post: 5265052" data-attributes="member: 584344">That chart is VASTLY over-zealous. To say the least. For 1.5K watts, you need 0/1 AWG?Let&#039;s do the math...@ 12 volts (Which is the lowest volts that your amp should run at), runing 1.5K watts, we&#039;ll find the amperes necessary...The watt formula is simple, and goes as followed:W=V*A where W = Watts, V = Volts, and A = Amperes.1,500=12A, 1,500/12=A, 125=ANow, let&#039;s use this chart:<a href="http://www.powerstream.com/Wire_Size.htm" target="_blank">http://www.powerstream.com/Wire_Size.htm</a>Based on the chassis wiring...As you can see, the 2-AWG clearly shows a 182 amp capability.Those completely voiding that whole 0/1. Now, using 0/1 would be safer, sure, and give room for head room. But please don&#039;t use that chart ever again.There are a lot of factors, though. (Like there is with everything, including length, original input, the resistance of the wire, the jacket thickness, etc.)As a &quot;rule of thumb&quot;, for systems over 1K watts, I&#039;d suggest 0/1 awg. But, you can easily pull upwards of 1,750 watts of 2-AWG, maybe even more depending on the quality of the wire and it&#039;s conductivity.NOTE: I used 12 volts because at higher volts, you need less amps to reach the same watts, I.E. 1,500 running at 14 volts only runs at 107 amperes.Oh, and also... amps have different sensitivity, so saying &quot;3/4 of the way&quot; for a 2v pre-out is ludicrous... the lengths of the RCA should be taken into account... but either way, gains should be set with either a DMM or by an Oscillator Scope. Even when you do the math and 3/4th of a spectrum from 6v to .2 volts, is 1.45, you still shouldn&#039;t tell someone who doesn&#039;t know much about the hobby &quot;3/4 is good.&quot;</blockquote>

[QUOTE="IDSkoT, post: 5265052, member: 584344"] That chart is VASTLY over-zealous. To say the least. For 1.5K watts, you need 0/1 AWG? Let's do the math... @ 12 volts (Which is the lowest volts that your amp should run at), runing 1.5K watts, we'll find the amperes necessary... The watt formula is simple, and goes as followed: W=V*A where W = Watts, V = Volts, and A = Amperes. 1,500=12A, 1,500/12=A, 125=A Now, let's use this chart: [URL="http://www.powerstream.com/Wire_Size.htm"]http://www.powerstream.com/Wire_Size.htm[/URL] Based on the chassis wiring... As you can see, the 2-AWG clearly shows a 182 amp capability. Those completely voiding that whole 0/1. Now, using 0/1 would be safer, sure, and give room for head room. But please don't use that chart ever again. There are a lot of factors, though. (Like there is with everything, including length, original input, the resistance of the wire, the jacket thickness, etc.) As a "rule of thumb", for systems over 1K watts, I'd suggest 0/1 awg. But, you can easily pull upwards of 1,750 watts of 2-AWG, maybe even more depending on the quality of the wire and it's conductivity. NOTE: I used 12 volts because at higher volts, you need less amps to reach the same watts, I.E. 1,500 running at 14 volts only runs at 107 amperes. Oh, and also... amps have different sensitivity, so saying "3/4 of the way" for a 2v pre-out is ludicrous... the lengths of the RCA should be taken into account... but either way, gains should be set with either a DMM or by an Oscillator Scope. Even when you do the math and 3/4th of a spectrum from 6v to .2 volts, is 1.45, you still shouldn't tell someone who doesn't know much about the hobby "3/4 is good." [/QUOTE]

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