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<blockquote data-quote="n2audio" data-source="post: 8528829" data-attributes="member: 540940">Power wire requirements are generally way over-blown in car audio.The 900.4 will do about 1k on the dyno -- on 0db tones.What portion of a standard music recording EVER reaches 0db?&nbsp; Basically none.What portion even gets to -3dB?&nbsp; Maybe 10% -- something in that vicinity.&nbsp; What&#039;s -3dB power wise?&nbsp; It&#039;s down 50%.&nbsp; That &quot;1000w&quot; amp is getting to ~500w+ 10% of the time, most of which would be dynamics that would be drawn from the onboard capacitors.Then assuming you&#039;re not at full volume all the time the numbers will come way down from there.If you&#039;re blasting it into clipping constantly, that would change things -- I suppose that&#039;s a lot of the reason for the &quot;wiring guides&quot; to always recommend huge wire.According to that chart above, I &quot;should&quot; be running 1/0.&nbsp; I&#039;m running 16&#039; 4awg, split to 2&#039; 8&#039;s -- 1kw and around 500w both class D.&nbsp; My V-drop is .2-.3 at full volume.A few years ago (different amps, but comparable power) my local auto electric shop hooked their charging system analyzer up and had me turn it up so they could see the current demand (I had brought them a fried alternator).&nbsp; I put in Bass Mekanik and blasted it.&nbsp; The highest reading was around 65A.</blockquote>

[QUOTE="n2audio, post: 8528829, member: 540940"] Power wire requirements are generally way over-blown in car audio. The 900.4 will do about 1k on the dyno -- on 0db tones. What portion of a standard music recording EVER reaches 0db? Basically none. What portion even gets to -3dB? Maybe 10% -- something in that vicinity. What's -3dB power wise? It's down 50%. That "1000w" amp is getting to ~500w+ 10% of the time, most of which would be dynamics that would be drawn from the onboard capacitors. Then assuming you're not at full volume all the time the numbers will come way down from there. If you're blasting it into clipping constantly, that would change things -- I suppose that's a lot of the reason for the "wiring guides" to always recommend huge wire. According to that chart above, I "should" be running 1/0. I'm running 16' 4awg, split to 2' 8's -- 1kw and around 500w both class D. My V-drop is .2-.3 at full volume. A few years ago (different amps, but comparable power) my local auto electric shop hooked their charging system analyzer up and had me turn it up so they could see the current demand (I had brought them a fried alternator). I put in Bass Mekanik and blasted it. The highest reading was around 65A. [/QUOTE]

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