Highest wattage for a 4 guage power wire

[jb2xx 10+ year member]

I am happy with my system & I don't see any upgrades in the near future. I don't want to spend the money & even if I did, I will be asking for it & might get jacked.

 

I am going to do Big 3 upgrade. Would it be ok if I use 4 guage or 2 guage wire to do the upgrade? I am running kx400.1 amp for sub (400w max) + KAC8401 (60wx4) = 640Wrms max.

 

[johnecon2001 5,000+ posts]

Use as big as you can afford. It's like five feet of wire to do the whole thing. I would cash in and get some 1/0.. never worry about big 3 again.

 

[jb2xx 10+ year member]

where can I get the 4guage wire from today on a Sunday. I don't want to go to Bestbuy since they are going to want an arm & a leg. Any sugestions?

 

[jb2xx 10+ year member]

walmart doesn't have it. Any other suggestions. I think I might go to BestBuy & get my buddies discount. I think I can get the 4guage rockford fosgate power wire for about $30.00 or so.

 

[supa_c 5,000+ posts]

suggestion:

wait until monday, order some wire and connectors from www.weldingsupply.com