CAR AMP FUSES KEEP BLOWING?

Question

i have a one 12" pioneer premier subwoofer 3000w max,1000 RMS,it hooked up to a 760 w max pioneer amp, im using 8 guage wire for it.i accidently touched the power and ground together a couple times and there are some burn marks on them.i set it up and it bumpin good for like 10 minutes then just shuts off,i checked the fuses and the were blown on the amp,i replaced the fuses and 10 minutes of bumpin same thing happened,im not sure what the problem is, im thinking maybe the power and ground are fried cuz the touched to may times, or maybe that 8 guage wire is to small for my stuff,also the gain was up all the way up and i was listening to it pretty loud.if anyone know for sure what the problem could be it would be very helpful.thanks.

Answer 1

I initially thought that the wire may not be the issue, but after doing a bit of digging, I'm less certain.  8 gauge wire can handle 50 amps and perhaps a bit more.  I did find a wire gauge calculator you can use, see resource link below.  

Some other things to check: bad connections near the fuse perhaps causing an over-heat condition, correct fuse rating for the equipment, connections not covered with heat-shrink or electrical tape, other equipment on the same fuse circuit drawing power.

Answer 2

Having the gain all the way up is a good way to damage the sub.

Here's a guide to do it right - http://www.box.net/shared/uchv4dbk88

The purpose of the gain is to match the signal volts RMS coming from the source (CD player, etc.) to the input of the amp to prevent clipping (damage by over powering).

You'll need a multi-meter (AC voltmeter, $15 from Radio$hack), Microsoft Excel and a way to burn an audio CD from an MP3.

If you don't have Excel, use this link http://www.box.net/shared/nkkw1dhk4g

See my site for more info http://spkrbox1.spaces.live.com

Answer 3

Okay your wire is way to small for that much power. You need at least 2 gauge wire from the battery back for that much power. I have one amp running 600 watts and i have 4 gauge wire running back to the amp. The best thing to do it replace all of the 8 gauge wire with something much bigger and try that. I would use 4 gauge. Many times the wire gets too hot and blows the fuses which saves you and your car from possible fire. Also check in you amps manual and see what size fuse/s it should take and make sure that you have the correct one/s installed in the amp itself and also the fuse inline from the battery.

hope this helps.

Answer 4

You are pulling a lot of wattage through an 8 guage wire. You might try putting every unit on a seperate fuse line as well as using a larger fuse.

Answer 5

If you keep shorting out the power, you will be lucky to have a working system. Put electricians tape on the wires, and talk to a shop that handles this type of gear, or see an auto mechanic.