actully dude that's a 600watt amp if you wire it up 2ohm, even more power at 1ohm.
But anyway, back to your question. My JBL 600.1 made my alt needle go bouncy bouncy all the time with my stock 75amp alt. I'd suggest going with a 100 amp and up alt. Especailly if your running nice things like a eletric fuel pump or fan.
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1987 Buick T-type
1998 HD Electra Elide
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