Question about Jl Audio 1000/1 Car Audio Amplifier

2 Answers

Jl 1000/1 amp not working

I have a 1000/1 amp connected to a 12 w7 sub with 4 gauge wiring and a 150 fuse. i also have a yellow top battery and upgraded my battery cables(negative to ground and positive to alternator) the blue light on my amp keeps going on so i dont what else i need to do to get to work HELP!!

Posted by Anonymous on

  • 2 more comments 
  • Anonymous May 10, 2008

    i am actually using a 200 fuse and i am getting well over 13-14 volts

  • Anonymous May 10, 2008

    i am sorry i meant that i the voltage is between 13-14 not over... ill have to check it with the meter like you said and see what happens

  • Anonymous May 11, 2008

    i just changed the fuse to a 100 amp fuse but its still doing it... cant the capacitor also tell me if the voltage is dipping??

  • Anonymous May 14, 2008

    Hey lets say for instance i am getting dips and peaks in my voltage what could i do to have steady voltage???

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2 Answers

Check your fuse,if u r using agu cause i had the same problem.use anl 100 fuse n u should be back

Posted on Jun 06, 2008

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  • 631 Answers

If I'm not mistaken, the blue light is the low voltage indicator. You need to confirm that the voltage ON THE POWER SUPPLY TERMINALS of the amp never drops below 11 volts. If it does, the amp will shut off. It's possible that you have a bad connection or even a defective fuse that's causing the problem.

JL recommends a 100 amp fuse for the amp. If you use a fuse that's too large and something goes wrong, the amp may be very severely damaged (possibly beyond repair).

Posted on May 09, 2008

  • Perry Babin May 10, 2008

    If you're getting well over 14v, that could be a problem. The amp is designed to operate between 11 and 14.5v. Outside of that range, it may shut down.

    You really need to change the fuse. With a 200 amp fuse, you're protecting a $10 fuse with a $500+ amplifier.

    If you haven't done so yet, you need to check the voltage ON the power connection of the amplifier (stick the meter probes through the screw holes in the top of the terminal block) to confirm that you have sufficient voltage getting to the amp. This is best done with a high quality meter capable of catching quick dips and peaks. Even extremely short duration dips in voltage (difficult to detect with a normal meter) can cause the amp to shut down.

    If the voltage is OK, the amp will need to be repaired.

  • Perry Babin May 11, 2008

    The meter on the cap may not respond quickly enough.

    Changing the fuse was not to solve this problem. It was to help prevent the amp being damaged beyond repair.

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http://www.crutchfield.com/S-B5qDIPXbsfV/learn/learningcenter/car/subwoofers_wiring.html
http://akamaipix.crutchfield.com/ca/learningcenter/car/subwoofer_wiring/2DVC_4-ohm_mono.jpg
http://www.optimabatteries.com/audio_electronics/

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