4 Gauge power wire capacity

[JeffM 10+ year member]

Will a run of 4 gauge power wire handle 1000 watts?

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[95BlackGA 5,000+ posts]

Depends on how long the run is, but yes, it will.

 

[revrider1 5,000+ posts]

Yes, but if u plan on ever upgrading just do 1/0 and get it overwith. Most will say the same...

If you do plan to stay at 1k 4ga is fine

 

[95BlackGA 5,000+ posts]

Yes, but if u plan on ever upgrading just do 1/0 and get it overwith. Most will say the same...

If you do plan to stay at 1k 4ga is fine

I do agree. I went with 4 gauge and I after about 2 months I wanted to upgrade. Lost about $40 in all after selling my 4 gauge, since it was used.

 

[revrider1 5,000+ posts]

Yes sir, happened to me also

 

[JeffM 10+ year member]

I already have the 4 gauge installed, so I was just wondering If I would need to go bigger.

 

[missinglink 10+ year member]

I say what you run to your amp run from your alt. Keep them the same size and you will be fine. More than 1000 watts on a 4g wire you may reach a current limit and will heat up the wire. Should not be a fire issue but may lose some power flow from A to B.

MLA

 

[Enellz 10+ year member]

yeah I agree with them. Go ahead and upgrade if you know you want stay at 1000rms. Also the length of the run also plays a factor.

 

[GearGuy2001 10+ year member]

I was going to use 4 awg for my new sub (since I thought thats what I had) then I realized I used 8awg so now I have Knu 0/1 wire in the mail

/story

 

[Teecee 10+ year member]

So you guys run 1/0 gauge all the way from the power source to your amp? You dont run 1/0 to a fuse/distro block and then run 4 awg from there to the amp?

 

[bass-aholic 10+ year member]

yes 4g will work fine.

 

[missinglink 10+ year member]

You can if its around 1000 watts. If you need more runs put them on the battery unless you want the cool distro block. Still run fuse before amps always! Fuse from alt to battery NO.

MLA