Hey guys, I have a dilemma. I just bought 2 Pioneer 3002 SPL's which run at 1000rms each. So I don't go completely broke, I am going to get two amps to push 750rms at 4 ohms each. I don't know if my stock alternator can handle that since I'm 99% sure my stock alternator on my Subie pushes 75A. This probably won't be enough since the total power would be around 1500W. Using the equation Power=Voltage X current, we get 1500W= 13(ish) x current. Therefore, I get about 120amps. So here is my question: even with a die hard deep cycle battery and both amps having their own 1 farad cap, it would seem like I need a new alternator, correct? Those run about $350 (at least the ones I could find). Does anyone think I could get away with installing an even better battery, like an Optima Yellow top? My other option is to try put a 2nd battery in my trunk, but for all the pain/hassle, I'd rather almost go with getting a new alternator. What does you guys think? Thanks in advance for any help.
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Need help with decision-2nd Battery, or new alt.