I'm going to be doing a sub install soon. I'll be using the following equipment:

One JL audio 10w7ae (750w rms)
Powered by a JL Jx1000/1D amp (750w rms)
Replacing the stock battery with a Kinetik HC1400R
My 4 speakers are at 50w rms each.

I'm pretty sure my stock alternator is rated at 130 amps. Will this be sufficient to power the above system?

 

Yes, the stock alt and a battery upgrade (along with the Big 3 upgrade) is sufficient for a system such as yours.

i recommend adding an external amplifier for the speakers. it will make a HUGE improvement over any head unit.

 

Thanks!