Question about Jl Audio 500/1 Car Audio Amplifier

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Amp turns on but there is now sound

Hey there i have a jl 500/1 mono amp powering 2 12" w3s and i recently had a short in the wiring. so i bought a new installation kit and hooked everything up and now my amp turns on with the power on LED light on but i have no power to the subs! what would you suggest i do?

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Re: amp turns on but there is now sound

Get the amp checked at a repair center, if you had a short, it is possible that the amp may have been damaged. If you get the amp tested and it woks fine, then you know the problem is in the wiring or the speakers. First you must determain where the problem is. you could be chasing your tail for a long time if keep checking wiring and speakers but the problem is the amp. Best to eliminate the amp as a problem first if you are confident that you wired the amp properly.

Posted on Jun 16, 2008

Re: amp turns on but there is now sound

Check your speaker wires, check the input sensitivity gain turn up

Posted on Jul 15, 2007

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Re: amp turns on but there is now sound

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Posted on Aug 17, 2006

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1 Answer

How do I set my amp I have a 500 jl mono amp and a 8" micro sub

Earth to the back light bracket bolt.
phono & remote cables to the head unit.
speaker + & - to the sub.
Live power input wire straight to the + terminal on the battery

Aug 15, 2014 | Car Amplifiers

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Ok i have a jl500/1v2 amp with 2 w6v2 subs and i haveing a problem dont no if the amp is two much for the subs becouse i turn the amp to get more tump and the subs pop and the yellow light filkes so i turn...

its real simple. your under powered.

your W6s RMS at 500 watts EACH and your sending em 250RMS (half what they need)
The 'pop' your hearing is the failure to supply enough power to draw the cone back in time and collides with the next wave of sound.

prove it?
drive a single W6 with your 500/1 bridged.
i'll bet your pop goes away.

long term, get another 500/1 or jump up to a 1000/1v2.

I also HIGHLY recommend JL's in-line audio cleaner. If i recall it was like 60 bucks but waaaay worth it. makes sure that theres no distortion in the source input to your amp(s), which...keeps your subs from trying to reproduce transients and delivers only clear signal to your subs void of all clipping signals. Its an active electronic compoent.

PS: if you are pushing 12W6's, i had the same setup once...I had W3s connected to my 500/1 and upgraded to the W6s...had the same issue your describing, and then got the 1000/1. happy ending.

May 03, 2011 | Jl Audio 500/1V2 Car Amp

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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

Fried amp

Hello zadiel89,

Out-of-warranty JL Audio products are normally repaired through JL's authorized dealer network.

To locate your nearest JL dealer, enter your zip code in the box on this page, select "radius" from the drop down, and click "find".

You can email JL directly at:

Hope this helps.

Aug 21, 2009 | Jl Audio Car Amplifiers

2 Answers

JL 500/1 loses power after 15 seconds

I would check either the remote wire or the ground. Better yet check both

Apr 02, 2009 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

Jl 500/1 amplifier will not turn on

you may have burned the channel you were using..try taking the cover off the amp and checkin for burned spots or any wires that may be loose or touching within the amp.

Feb 24, 2009 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

My JL subs just dont beat like the ONES IVE HAD before as well as the ones my friends have had

sounds like they have your sub amp in mono but they put the speakers in series which totally cancels the benefit of running your amp in mono. you will probably be happier if you just hook the left speaker to left plus and minus and the right to right plus and minus. Cuz even though subs aren't directional they do pass some higher frequencies that are and that dilutes the stereo effect.

Jan 19, 2008 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

Car amp's stopped working. Putting out a heart beat sound through subs but no bass.

could be low current ,disconnect all power including ground for 20min N.B most amps will seem to be shorted at output but this is normal due to damping ratio.

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