SO i just put 2 jl w3 and I have an alpine v12 amp when got a 1200w amp wiring kit now my car seems to not have enough power to even jumpstart I tested the altinator and it was good and the battery was new I was wondering if having to big of a power wire drain my battery.

 

check your starter, that's what happened to mine right after I installed my sound system. if you checked the alternator go to the starter next. is your wire a 4 gauge? I have a system with a total of 1700 total watts. you might want to install a capacitator

 

add another battery