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<blockquote data-quote="DC8 Flyer" data-source="post: 1980900" data-attributes="member: 568732">Keep in mind you are not fusing the wire to protect the amps, that is what they have the internal fuse for, you are fusing to protect the &quot;wire&quot; or more specifically your car.From the wire guid on this forum:4 gauge: ~140 amperesClass D (~70% efficiency) - Class A/B (~50% efficiency) -   I would think you would need at least a 2ga wire running to a fused distro block, the splits into at least 4ga to each amp. On the other hand, since the 150 amps you get from adding the two fuse ratings together is the absolute max those amps together should ever pull (plus a percentage for the fuse to blow) you could get away with a 140 amp fuse on the 4ga (max amperage for that size wire), but if you really push the amps hard you may blow that fuse on a regular basis.</blockquote>

[QUOTE="DC8 Flyer, post: 1980900, member: 568732"] Keep in mind you are not fusing the wire to protect the amps, that is what they have the internal fuse for, you are fusing to protect the "wire" or more specifically your car. From the wire guid on this forum: [I][B]4 gauge: ~140 amperes[/B][/I] [I][B]Class D (~70% efficiency) - [/B][/I] [I][B]Class A/B (~50% efficiency) - [/B][/I] [I][B] [/B][/I] [I][B] [/B][/I] [I][B]I would think you would need at least a 2ga wire running to a fused distro block, the splits into at least 4ga to each amp.[/B][/I] [I][B] [/B][/I] [I][B]On the other hand, since the 150 amps you get from adding the two fuse ratings together is the absolute max those amps together should ever pull (plus a percentage for the fuse to blow) you could get away with a 140 amp fuse on the 4ga (max amperage for that size wire), but if you really push the amps hard you may blow that fuse on a regular basis.[/B][/I] [/QUOTE]

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