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What gauge power wire is needed to run 2 amps..


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#1 Demone24

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Posted 23 March 2017 - 04:57 PM

I have a question and any input would be greatly appreciated.. in a 2 amp set up 1 amp requires a 4 gauge wire and the other requires a 8 gauge. What size wire should I run from the battery to power distribution block?

#2 Grandprix1

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Posted 23 March 2017 - 05:05 PM

I have a question and any input would be greatly appreciated.. in a 2 amp set up 1 amp requires a 4 gauge wire and the other requires a 8 gauge. What size wire should I run from the battery to power distribution block?

I would think 4 would be fine. Maybe go bigger if you have doubts but you shouldn't need a huge wire. I think the wire coming off the alternator is an 8 gauge...? That's transporting 75 or so amps. Do some further research but 4 should be fine

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#3 Psych0matt

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Posted 23 March 2017 - 05:19 PM

I'd probably go at least 2 then if you're splitting to an 8 and a 4, but probably best to go with a 0

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#4 Nas Escobar

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Posted 23 March 2017 - 05:20 PM

0 gauge would be the most ideal, but you could get away with 2 gauge.
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#5 Imp558

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Posted 23 March 2017 - 05:29 PM

Depends also on wether you're running a stiffening cap. It would be far more useful to know what the expected current draw of each is. Without any more info I would also think 4 to be sufficient, being the smaller amp should be mids and highs and not run to capacity like the one with the subs but when in doubt blatant overkill is the answer.
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#6 Demone24

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Posted 23 March 2017 - 08:51 PM

Thanks for the info

#7 W30olds

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Posted 30 March 2017 - 09:19 PM

I'd say 4 at a minimum. Recommend 2 gauge. I just did a multiamp install in my car and ran 2 gauge amp wire to the distribution block and 4 gauge to the amps with 4 gauge grounds. Did this after talking with the car audio dudes near me. I'm running a mono block amp for subs and a 4 channel for the mids and highs. 4 gauge should be good up till 1000 watts.


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#8 Cparkes foo

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Posted 05 October 2017 - 08:53 PM

U have to add up the fuses, say if ur amp has two 30amp fuses u are going to need to supply a dependable 60 amps and at least the same size fuse at the bat. I would definetly run a min.of 2 guage and a power cap so your lights wont dim assuming u are not doing the big three upgrade (youtube it). A real quality 1000k amp pulling a 1ohm max load will for sure tax the heck out of alternator without a cap or a high current setup.

#9 Nas Escobar

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Posted 08 October 2017 - 06:08 PM

Necropost!


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