If it's just minor when your turned up higher then normal I like them, if it's every time it's on then go battery. But a single jl amp at 500 watts shouldn't need a battery upgrade.
So, Had to drive to Michigan on Monday, back to Kansas Tuesday, Georgia Wednesday. Up next is Florida on Friday, and back to Kansas by Sunday. But at least it's paid leave and I'll have my dog and a trunk full of guns when I get back.