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Jl 500 1

The crossover "Q", frequency, and boost knobs seem to not be working now. I faintly smelled something while I was driving and I can hear a difference. any idea what it may be

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

techman
  • 3130 Answers

SOURCE: JL 500/1 power problem.

There should be a small switch someware on the amp marked VOX or normal. I bet its on vox. if there is no switch then theres a jumper inside the unit to put it into a vox state. Vox Is when audio is at the input the amp goes on and when theres no voltage at the input the amp switches off.

Posted on Sep 22, 2006

coleslaw424
  • 43 Answers

SOURCE: Jl 500/1

Nine times out of ten if the amp smells burnt it usuallly is. Your best bet is to hook another amp to your system and see if you get sound.

Posted on Jan 30, 2008

  • 631 Answers

SOURCE: 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.

Posted on Apr 19, 2008

  • 1 Answer

SOURCE: how do i wire a jl w3 to a jl 500/1 mono

wire the sub in series it will give you best bang

Posted on Mar 16, 2009

ozark333
  • 396 Answers

SOURCE: Is the bass boost the gain or frequency knob?

Bass boost simply adds DB or gain to the bass signal. Some like it, some dont.
The frequency knob is the Low Pass Filter (LPF) that cuts off the amp output above
the set frequency. A bass system usually cuts off below 400 HZ and more often 200HZ.
A good, rattle your car bass note is in the 25-80HZ range or lower but most amps and audio
input devices cant attain a good low note with clarity.
"Low-pass filter allows only frequencies below the crossover point to be amplified. A high-pass filter allows only frequencies above the crossover point to be amplified - useful for keeping low bass away from small speakers, so they can play more efficiently."
Checkout Crutchfields Glossary of Car Amps.
http://www.crutchfield.com/S-LPyoWWgD5qN/learn/learningcenter/car/amplifiers_glossary.html

Posted on Mar 15, 2011

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DUB2502 550w 2-channel a/b mosfet amplifier 1000 watts maual


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Power but no sound


If you want to repair it ,Take it to some one that no what in the hell there doing,

Nov 05, 2012 | Jl Audio 500/1 Car Audio Amplifier

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Have a jl audio 500/1 the red light blinks and no other light turns on. whats the problem with it?


I think you might have your remote turn on from your deck to amp hooked up wrong check that out!! I not are you familliar with the mr. butterworth crossover JL developed for that series of amp? Just like its big nrother the 1000x1 class D the built in smart crossover has many built in pretect modes. If your subs are drawing to much power it shuts down if they draw to little of ohms or to many but that 500 is 1 ohm stable so download the crossover settings from JL and go from there

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To start, turn the gains on your amp all the way down. Bass boost should be off (this us used if you listen to your subs at low volume, the boost will heat your amp up quick if you use at high volume). Then turn the volume on your headunit up to 3/4 full. Make sure the filter on your amp is on low pass. The crossover point should be at it's lowest too. With all these in place, you can begin turning up the gain. You will have to decide at what point to move the crossover point. Since there are different styles of music, you will have to listen to where you feel notes are "dropping off" from the music. Adjust the crossover point to your liking, but remember that subs were made to reproduce low frequencies. Hope this helps

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1 Answer

Is the bass boost the gain or frequency knob?


Bass boost simply adds DB or gain to the bass signal. Some like it, some dont.
The frequency knob is the Low Pass Filter (LPF) that cuts off the amp output above
the set frequency. A bass system usually cuts off below 400 HZ and more often 200HZ.
A good, rattle your car bass note is in the 25-80HZ range or lower but most amps and audio
input devices cant attain a good low note with clarity.
"Low-pass filter allows only frequencies below the crossover point to be amplified. A high-pass filter allows only frequencies above the crossover point to be amplified - useful for keeping low bass away from small speakers, so they can play more efficiently."
Checkout Crutchfields Glossary of Car Amps.
http://www.crutchfield.com/S-LPyoWWgD5qN/learn/learningcenter/car/amplifiers_glossary.html

Mar 14, 2011 | Rockford Fosgate Car Audio & Video

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Can i hook this amp to a 2 channle out put stereo?


Sure. Specs are listed below. I think it's designed for regular 2-channel input, isn't it?

jturcotte_41.jpg

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    zzedly only asked only one good question, here is what should've been asked.

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    Jl 500/1


    Nine times out of ten if the amp smells burnt it usuallly is. Your best bet is to hook another amp to your system and see if you get sound.

    Jan 30, 2008 | Jl Audio 500/1 Car Audio Amplifier

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