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Keith Easterling
Keith Easterling Posted on Jul 07, 2019
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I have a JL 500/1 amp little old school but strong amp everything was up to par no problems wired correctly single L7 12 4ohms sub that is run off of that amp only. I have a 1 farad cap and also running proper wire for hot leg and ground I think the hot leg is a 2 gauge and ground is the same through the Fair also. Out of the blue the amplifier quit sending power to the sub amp stays on does not smell like it's been burned has not been abused and nothing is changed does not doing to protect mode just does not have no output what do you think could be the problem? If anyone out there has ran into a situation similar can you have please shoot me some kind of explanation or what I should do next thank you. old school

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Alphanso Tee

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  • Expert 169 Answers
  • Posted on Jul 11, 2019
Alphanso Tee
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Joined: Sep 06, 2008
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Sound like you blow your out put on the amp or your speaker wire is wrong to handle the low from the amp

5 Related Answers

uge44

Eugene Tetlow

  • 226 Answers
  • Posted on Nov 19, 2008

SOURCE: 500/1 settings to run jl13w6 v2 d-4

Just had a look at both amp and sub on the JL Audio website. The amp runs from 1.5-4ohms. 4ohms at 14.5V. The sub is running dual 4 ohms coils. That's what the D-4 means. So should be an easy set up. The amp has two mono outputs, so one for each coil. It looks like the perfect wattage to run the sub real nice.
Web page for amp: http://mobile.jlaudio.com/products_amps.php?amp_id=439
Web page for sub: http://mobile.jlaudio.com/products_subs.php?series_id=18

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Anonymous

  • 4 Answers
  • Posted on Jan 14, 2009

SOURCE: 3 amps 2 subs sound system for car, need wiring help

it is easy to hook it up!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

hoyzee1

  • 150 Answers
  • Posted on May 12, 2009

SOURCE: jl audio 1000/1 low voltage -keeps shutting off at high volume

You should definitely upgrade the power wire to the sub amp to 4 gauge -absolutely your choking your amp its starving for current-poor thing is starving !!!!!!!

Anonymous

  • 123 Answers
  • Posted on Jul 25, 2009

SOURCE: JL Audio 500/1 Amplifier "Thermal" light flashing

pooi

sodeep

Sudeep Chatterjee

  • 3267 Answers
  • Posted on Jul 30, 2009

SOURCE: Green power light on JL Audio 500/1 but no output

Its the power transistors that would be affected by low voltage. It delivered till it finally gave up 'cos the output wattage to be generated at low voltage means more current flowing through the equipment. This high current will adversely affect all small solenoid valves & transistors and IC's. Even failure of one section of any IC is rarely detectable with the naked eye. It has to be thoroughly checked with a multi-meter to assess the damage correctly......sodeep

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0helpful
1answer

I have a 500/1 mono jl audio amp and two w3 10" woofers, every time my bass hits hard my low ohm light will flicker on and off but the light doesn't stay on to long it only flickers every time the bass...
not really a problem, your just running a the threshold of the amps comfort zone, a lil trick to raise your impedance a little bit its to run an additional 10 feet of wire before your sub, (longer the wire the more resistance) 10 feet should jump you up about .5 ohms. you wont hear the difference but your amp will fill it, and run a little better. 20 feet will give you right around 1 ohm. now if you dont mind loosing some power run the subs in series and then run them bridged. your amp will work harder, but run easier because its on a big open loop. but before all this take a multi meet and read out your voice coils to see what the ohm level is, then read out what it is at the speaker, then you will see 1. if the subs are okay, and 2. how much you need to raise your impedance for you amp to run comfortably.
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Aug 09, 2010 • Jl Audio 500/1 Car Audio Amplifier
0helpful
1answer

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?
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Mar 01, 2010 • Jl Audio 500/1 Car Audio Amplifier
1helpful
1answer

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.
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Feb 24, 2009 • Jl Audio 500/1 Car Audio Amplifier
0helpful
1answer

Popping sound! please help - jl 500/1 and two jl w3v3 2ohm subs
no connection are good + to + -to - thats all that matters. either the speakers are blown or you need a stronger amp. since you already tried speakers probably need bigger amp. definitley not the box. no such thing as a break in period, are the subs 10 12 inch or what. you could try to bridge them too that means hook both up to the same +-terminals, 2 wires per screw. it usually isnt the way they hook them up, its the wires fuses etc that cause problems. what guage wires is the speaker wire, the power line etc. if you give me these guages i might be able to get somewere
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Feb 24, 2009 • Jl Audio 12W3 Car Subwoofer
1helpful
1answer

500/1 settings to run jl13w6 v2 d-4
Just had a look at both amp and sub on the JL Audio website. The amp runs from 1.5-4ohms. 4ohms at 14.5V. The sub is running dual 4 ohms coils. That's what the D-4 means. So should be an easy set up. The amp has two mono outputs, so one for each coil. It looks like the perfect wattage to run the sub real nice.
Web page for amp: http://mobile.jlaudio.com/products_amps.php?amp_id=439
Web page for sub: http://mobile.jlaudio.com/products_subs.php?series_id=18
Read full answer
Nov 19, 2008 • Jl Audio 1000/1 Car Audio Amplifier
2helpful
1answer

I bought a 500/1 jl audio amp and also a w7 10 sub
if its cutting off and right back on then check your ground and your power wire makes sure both are connected good and none of your fuse's are blown, either that or you got a wire hooked up backwards in the sub.. but my guess is that the sub is hooked up wrong... that sub should be hooked up in a series or in parallel,

ok if your running just one speaker, it should be hooked up like this and 2 speakers are a different way...

this is parallel :pos to pos , neg to neg, then one wire coming from pos on sub to pos on amp then neg on sub to neg on amp but bridge the amp on your amp should be 2 pos and 2 neg in two different channels take the pos off the sub into the pos on 1 channel and then the neg from sub to the neg on the other channel,

this is series : on the sub it will go pos to neg then the other neg and pos will go to the amp, but make sure the pos and neg r on different sides of the sub, dont hook them both to the same coil

if your need more help give me your email and ill send you a pic of how to do it...


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Aug 12, 2008 • Jl Audio 500/1 Car Audio Amplifier
0helpful
1answer

Sub does not operate
There could be many issues, from fuses in your amp, to power getting to your amps, to "low" impedance on your amp, and the circuit shutting down. Or it could even be your head unit, perhaps there is a setting on the HU that turns ON/OFF the subwoofer. BTW, you are running to low of an impedance on that amp. If my memory serves me correct, the lowest impedance that they JL Audio recommends is 1.5 Ohms.
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Jun 25, 2008 • Orion H2 12.2 Car Subwoofer
0helpful
3answers

How should I wire my 3 subs to the 500/1 amp???????
First of all how many ohm's are each subwoofer rated at . Are the subwoofers dual voice coil or single voice coil. Once I know that I can help you. I think the JL amp is not recommended below a 2ohm load.
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Mar 16, 2008 • Jl Audio 500/1 Car Audio Amplifier
0helpful
2answers

Speaker connections
This is a single channel amp that puts out about the same power at 4 Ohms or 2 Ohms. If you have two 4 Ohm single voice coil subs, then wire them parallel (both pos and both neg) to achieve 2 ohms. If you have two dual 4 Ohm voive coils, you want to do a series - parallel config to get to 4 Ohms (voice coils in series, then parallel the subs). Same with DVC 2 Ohm subs, series parallel = 2 Ohms. Do NOT go below two Ohms. You will blow the amp (actually, it'll do 1.5 Ohms). If you happen to have 2 Ohm single voice coil subs (not as likely) run them in series. Most amps will put out about twice as much power at 2 Ohms vs. 4, but this amp is designed to put out about the same. Hope this helps!
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Feb 12, 2008 • Jl Audio 500/1 Car Audio Amplifier
0helpful
1answer

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.
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Jan 19, 2008 • Jl Audio 500/1 Car Audio Amplifier
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I have a 500/1 mono jl audio amp and two w3 10" woofers, every time my bass hits hard my low ohm light will flicker on and off but the light doesn't stay on to long it only flickers every time the bass...

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