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<blockquote data-quote="fuster" data-source="post: 8100888" data-attributes="member: 604663">The answer to your question depends on the total current draw of both amps.&nbsp; Without doing the numbers, in general an 8 gauge wire running longer than 8 feet will not adequately service 400 watts of power from one or more amplifiers.&nbsp; To know for sure, you will need to calculate the total maximum current draw of the two amplifiers.&nbsp; For what you have, it is hard to say based on the information you provided.If you run one amplifier on a subwoofer and you are operating the amplifier at less than 4 ohms, you will require a larger diameter wire for a 12 foot run to make sure the power supply on the board of the amp does not lose current during a large power demand.If one or both amplifiers are Class D designs, they might not require a lot of current.&nbsp; If they are AB designs, I would prefer to use 4 gauge wire for your set up, and fuse the wire to protect it from a fire by fusing at the total current rating of both amplifiers added together.&nbsp; Make sure your ground wire for each amp is at least the same gauge as the power wire.</blockquote>

[QUOTE="fuster, post: 8100888, member: 604663"] The answer to your question depends on the total current draw of both amps. Without doing the numbers, in general an 8 gauge wire running longer than 8 feet will not adequately service 400 watts of power from one or more amplifiers. To know for sure, you will need to calculate the total maximum current draw of the two amplifiers. For what you have, it is hard to say based on the information you provided. If you run one amplifier on a subwoofer and you are operating the amplifier at less than 4 ohms, you will require a larger diameter wire for a 12 foot run to make sure the power supply on the board of the amp does not lose current during a large power demand. If one or both amplifiers are Class D designs, they might not require a lot of current. If they are AB designs, I would prefer to use 4 gauge wire for your set up, and fuse the wire to protect it from a fire by fusing at the total current rating of both amplifiers added together. Make sure your ground wire for each amp is at least the same gauge as the power wire. [/QUOTE]

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