Us Amp question

[redg60rado]

I'm currently using a 400x us amps for my subs and I bought another which I plan to install next week, my question is do I need to run another 0 guage from the battery to feed the amp or do I just feed it of existing wiring and get a 500 amp anl?

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[groundpound4200 5,000+ posts]

not a bad idea to run more power cable if you can. Whats the ratings on those?

 

[redg60rado]

I think 225 amps

 

[HypnoticCure 10+ year member]

why are you using 500 amp fuses ?