Question about Jl Audio 500/1 Car Audio Amplifier

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Jl 500/1 no output audio

The sub and amp worked fine. i got it tested today. they said there is no sound coming out? any ideas on how to fix or how much to fix? thanks

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You can send it to JL Audio and they will fix the output stage you toasted and will also perform any mods or upgrades to bring it up to spec. This will set you back $ 180.00 plus shipping cost to send it to JL. I know it's expensive but you damn near get a whole new amp to rock your world. mark..

Posted on Aug 14, 2009

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1 Answer

I have a JL Audio 500/1 that powers on just fine. But there is no output coming from the sub.


Did you check the fuse(s) on the amp itself ?
One or more of those fuses are for protection on the output side of your amp.
What about the 12 volt power from your battery, have you checked for 12 volts present at the input power side of your amp?
Don't forget that you need just as good of a ground as you need power supply!!!!!
Good luck !

Jun 24, 2010 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

JL Amp isn't powering subs and speakers


silly as it sounds, you may want to check your EQ settings on your headunit. Things like sub volume, SLA, loudness and balance. When they replaced your battery, those old settings were lost.

Mar 26, 2010 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

Power light on, no sound through sub, I'm reading high ohm output


Contact Eric @ Capital Audio & Electronics Repair 850-339-1130 we repair all name brands & all models Located in Tallahassee,Fl

Mar 15, 2010 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

My Jl Audio 500/1, power light comes on but no power to subs


maybe it dont have enough to push it ,,did you try it before you buy it?

Mar 01, 2010 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

My output rca jacks are not working. where can i buy some more to fix my amp?


The thing about Jl audio amp is that you have to choose between using the sub output or the the rca output. In order to use the rca output you will have to switch a switch next to the gain level. And it should be label low/high voltage. If you want to use the sub output then leave it on low if you want to use the rca output then switch it to high. I hope that solve your problem

Oct 11, 2009 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

JL Audio 500/1 Amp, The green power light is on but no sound!


Check to be sure you are on the correct outputs on the head unit, and be sure the outputs do not have a separate volume control.

Mar 06, 2009 | Jl Audio 500/1 Car Audio Amplifier

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IVE HAD 2 JL 1000/1S DO THIS TO ME EACH TIME ITS TURNED OUT TO BE A SHORT IN THE RCA IMPUT BUT ALSO CHECK YOUR RCA CABLES AND THE SUB INPUT ON YOUR HEADUNIT

Dec 22, 2008 | Jl Audio 1000/1 Car Audio Amplifier

1 Answer

500/1 sub amp stopped working, burnt rubber smell


It sounds like the power supply failed. Generally when the supply fails in that amp, you have to replace all 8 of the power supply FETs and all 8 of the 47 ohm surface mount resistors. Many times, the supply fails because one or two of the output transistors have failed.

If you want to have JL repair it, you MUST go through an authorized JL dealer.

If you have a good local repair shop, they should be able to repair it.

Let me know if you have any other questions.

Aug 06, 2008 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

Jl audio 500-5


Assuming that you've confirmed that the speaker is in good working order and that the wiring isn't shorted in any way...

There are separate power supplies for the high and low amplifiers. It's possible that the one for the sub output has failed. If that's the case, the output transistors probably failed and that's what damaged the supply.

Generally, I'm willing to help people repair their amps but this is a large, complex amplifier and it should be repaired by a qualified technician.

Apr 18, 2008 | Jl Audio 500/5 Car Audio Amplifier

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