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Using 12 gague wire on a 250 watt amp blowing fuse

What should i do blowing fuse on my amp should i go bigger with the ground and power wires

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The wires are not the case(I suppose). But you might want to move to 8 gauge(though 10 could be enough,but in Hi-Fi enough is never enough) , but 6 would be the real thing if it's 4x250W(sinus?) placed in the rear of a car(while the battery is in the front)than this is actually just a FAIR minimum. An upgrade to the battery's ground wire is to consider, too, must be thicker than the actual, so a 4-gauge I reckon?

But back to your question :) What fuse did it blow actually? Is it in the car's fuse box/ Is it inline on the wire between the battery and the amp?/ or is it the amp's own fuse(on the amp) ????

Posted on Apr 15, 2009

  • dushko
    dushko Apr 16, 2009

    Yes, right, but do we want the wires to be more expensive than the amp itself? There's no sense of putting zero gauge in front of this amp. 
    Rather buy some serious 4 or 6-er(rather 4) and get a capacitor with it(if you already don't have one)

    As for the fuse, answer the question in my first post(which fuse do you mean)

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Oh my yes. I would recommend number 4 as a minimum. Use the same size for the ground. Bond it to the body in the best way you can. Use a CAD welder if you know anyone in the pipeline industry.

But ideally, run the biggest guage you can afford. and FUSE IT!! Zero Guage or better, and buy a fuse block and put it at the battery. Otherwise your crash could be a crash and burn.

Posted on Apr 15, 2009

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