Question about Jl Audio 500/1 Car Audio Amplifier

1 Answer

JL Audio 500/1 Amp

I get power but no sound from subs.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,056 Answers

Do you get sound if you set it on full? If you don't get sound in any way it maybe broked. Do you smell burnt components? Is the protection light on? If so you probably have a shorted transistor inside. If everything looks normal but has no sound at all. The preamp circuit is probably not getting power due to a malfuctioning power supply circuit. The way a car amp works is it has a DC-DC converter, which steps up the 12 volts to two supply voltage. One is usually a -35V, an the other is +35V. To a totall of 70V. Power transistors don't operate efficiently on 12 volts thats why it is designed like that. A PWM (pulse width modulation) circuit which consist of a chip, and various components connected to it drives an array of Power FET(field effect transsitors) usually conected in parallel to add power. These FET drive two or more "powder iron core" transformer. The other side of the transformer is connected to large diodes, providing power to the transsistors that actually drive your speakers. The supply voltage to the section preamp section is usually the same as the battery voltage. This preamp section filter high frequency for things such as low pass, high pass etc, and through many stage of amplification using small transistor, the final stage is the large transistors that drive the speakers. If you can tell me more info I can help you with a step by step guide on fixing the amp.

Posted on Jun 28, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My jl 500.1 amp dosent play anything.


you have your sub wired incorrectly. your amp shouldn't get hot unless you're settings are too high or your'e sending too small of an ohm load to the amp. this would cause it to heat up and will fry your amp.

May 30, 2010 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

JL Amp isn't powering subs and speakers


just go through ur connections man one by one ull find the prob soon.....check teminals on battery...power line to amp ....all fuses within prob area and obviously make sure u have a good ground.....really impotant.....ground is the most neglected thing people do from my experience bein a audio tech oh and if that isnt it check ur subs....stick a 9v batt on the back pos n neg of each sub n c if they pop in r out this will determine if ur subz r blown

May 14, 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

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".

http://mobile.jlaudio.com/dealerfind.php

You can email JL directly at: technical@jlaudio.com

Hope this helps.

Aug 21, 2009 | Jl Audio Car Audio & Video

1 Answer

Got jl300/2 amp confused which subwoofer sounds good


Hello drsubhakar26,

JL W6's will perform well with from 150-600 watts RMS. W7's with from 150-500 watts. Less expensive Alpine Type R's work OK with from 200-500 watts RMS. Either of the brands will sound good. None of them will perform to their full potential with 300 watts RMS. Powering any sub with a 2-channel amp is a compromise. A monoblock is more efficient.

Hope this helps.

Jul 12, 2009 | Jl Audio Slash 300/2 Car Audio Amplifier

1 Answer

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

1 Answer

Jl 500/1 no sound, green light


This is an indication that the MOSFETs are ok but the driver stages may have a problem. Get a schematic find the pre-amp stages and test the voltages levels there as compared to the schematic. I do believe that you will find the problem in the pre-driver pre-amp atages.

Sep 03, 2007 | Jl Audio 500/1 Car Audio Amplifier

2 Answers

Jl audio 12w1v2-4


500watts sounds about right to me,i wouldnt go any higher as you risk popping the sub and haveing a melt down in the coil section of the subwoofer.

Feb 18, 2007 | Jl Audio 12W3 Car Subwoofer

Not finding what you are looking for?
Jl Audio 500/1 Car Audio Amplifier Logo

421 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jl Audio Car Audio & Video Experts

Mark Skinner

Level 2 Expert

77 Answers

Tygh Duval
Tygh Duval

Level 2 Expert

300 Answers

Matthew Spark
Matthew Spark

Level 3 Expert

1066 Answers

Are you a Jl Audio Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...