Need help fast!

[87linkin 10+ year member]

I have a crescendo audio 1000 watt amp. I'm going to be running it at 2 ohm. 250+ watts x4 channels.

My question is what size in line fuse do I need? I am fusing before and after batts. I am using kollossus 4 awg cable.

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[TaylorFade 10+ year member]

I think 4awg is only capable of 138A (theoretically) so I would say a 125A, but I think it's more about your power. i.e.- 1kw/voltage = fusing. So that's more like 80A.

 

[keep_hope_alive Premium Member]

fuse for the wire. 125A is fine.

 

[87linkin 10+ year member]

I went in between and got 100 amp fuses.