when need more?

[NegativeEffect1 10+ year member]

at what point do you have to worry about getting into new alts and batts? for now im only installing one JBL 75.4 amp but when i get my subs ima have two JBL 2200watts

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[monte_carlo97 10+ year member]

when you get those JBL 2200 watt amps

 

[DBfan187 5,000+ posts]

when you get those JBL 2200 watt amps

x2...it all depends on the current draw...

 

[NegativeEffect1 10+ year member]

what wires need to be replaced when i install the amp/batt? and with what?

 

[monte_carlo97 10+ year member]

the big three

Alt to + batt

Enginge to chasis

chasis to Batt -

I think that is right someone correct me if i am wrong

if i was you i would use 0 ga. but you can also use 2 ga. but no less than 4 ga.

 

[audiotech]

I'd use 4 awg, but first I'd hook up the amps and see how my electrical system handles it.

 

[monte_carlo97 10+ year member]

better to have more than enough, than to fall short. That is why i recommended 0 ga.

 

[squeak9798 5,000+ posts]

but first I'd hook up the amps and see how my electrical system handles it.

Agreed. Hook it all up first and see how the electrical system does. Then from there decide what steps need to be taken to cure the voltage problem (if any).