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Car Audio Equipment
Amplifiers
Do I really need 4 gauge wire to power a 400 watt amp?
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<blockquote data-quote="mat3833" data-source="post: 7933009" data-attributes="member: 587645"><p>run the 4 ga, technicly good 12 ga wire is rated between 35 and 50 amps constant current AC voltage(typicly ~40 amps is average). but bigger is almost always better. just go the 4ga run once and you will be set for ~130 amps constant(that works out to 1690W @ 13V) i went the "smaller wire first" route when i wired my first car. i ran 8ga and then 2 months later when i wanted to upgrade my sub amp and add a 4 channel amp for my comps i had to rip out the 8 ga and run some real wire. i wish i had just done it right the first time.</p><p></p><p>Matt</p></blockquote><p></p>
[QUOTE="mat3833, post: 7933009, member: 587645"] run the 4 ga, technicly good 12 ga wire is rated between 35 and 50 amps constant current AC voltage(typicly ~40 amps is average). but bigger is almost always better. just go the 4ga run once and you will be set for ~130 amps constant(that works out to 1690W @ 13V) i went the "smaller wire first" route when i wired my first car. i ran 8ga and then 2 months later when i wanted to upgrade my sub amp and add a 4 channel amp for my comps i had to rip out the 8 ga and run some real wire. i wish i had just done it right the first time. Matt [/QUOTE]
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Do I really need 4 gauge wire to power a 400 watt amp?
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