Jeremy009 Posted April 28, 2019 Author Report Share Posted April 28, 2019 We used a multimeter. Played the same tone, his own got 78amps,mines got 61amps and my battery bank is bigger. Yes,i feel i need to check my grounds. Previously i had smaller amps in the car. It always seems to sound as if it was lacking. Guys with half the car audio i got, with really bad quality and not even any electrical upgrades will sometimes sound louder. And yes, i got a good sub box Link to comment Share on other sites More sharing options...
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