Question about Jl Audio 500/1 Car Audio Amplifier

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I HAVE A JL AUDIO MONOBLOCK AMP 250

In the amp we have 3 lights why does my amp turn the light green and the low one to when my music is loud it turns it on

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It indicating that the power output is too loud and possibility of speakers may get damaged if played at this volume for long periods. When the loudest sound is played the led light mightshow its loosing its brightness and dims in time with the sound level.......................sodeep

Posted on Aug 03, 2009

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Posted on Jan 02, 2017

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I looked up the correct way to wire my JL 13.5W7 1.5. Therefore it said to wire it in parrallel. I understand this will put it at .75 ohm. As I start to turn it up it sounds great, very loud but once the...


1000/1v2 Class D Monoblock Subwoofer Amplifier Specifications:
  1000/1v2

Rated Power:
1000 W RMS @ 1.5 ohm - 4 ohm (11V-14.5V)

THD at Rated Power:
<0.05% @ 4 ohm

S/N Ratio:
>95dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)

Frequency Response:
5 Hz - 250 Hz (+0, -1dB)

Damping Factor:
>500 @ 4 ohm / 50 Hz


According to the chart your amp is only stable down to 1.5 Ohms, so running at .75 Ohms the noise you are hearing is the amp clipping (running more power than it can handle at low ohms)
I would suggest wiring it in series, or you could adjust the gain on the amp until the popping goes away.

Hope this helps.

Nov 10, 2010 | Jl Audio 13W7 Car Subwoofer

1 Answer

Jl audio 250/1 amp


This could be due to multiple things. First I would run a test light to the speaker leads of the amp as if you were running your speaker...it should light up and blink to the sound of music coming through. If no sound then most likely your RCA cables are bad or input jackets on the amp are loose and be shorting out causing the low light to come on. If you know 100 percent that you bought that amp in good running condition then most likely its something simple like the RCA wires are bad..Hope this kind of helps you out.

Feb 21, 2009 | Jl Audio 250/1 Car Audio Amplifier

2 Answers

I HAVE A JL AUDIO MONOBLOCK AMP 250


there could b allot of factors involving this problem first could and most important is to make sure theres no loose connections in your wiring and find out how ur subs are wired in. are they SVC or DVC (single and duel voice coils) also what are theyre impedences if SVC could be 2, 4, or 8 also the same as DVC but jus 2 sets of terminals. find out first then the reason i ask is cause allot of half way manufactures are installing a device u could say that will cause amps to automatically cut off when the load on the amp reaches its lowest impedence load so when ur subs are moving in and out that load varies with how far the sub is extending out jus cause a sub say its a 4 ohm SVC doesnt mean that when its pounding away the load may actually be 3 ohm when fully extended. find out these variables first and then reply and ill let u know what to do properly.

Jan 16, 2009 | Jl Audio 250/1 Car Audio Amplifier

1 Answer

Why does My AMp turn off


Hello, 
  You need to use 4 guage or larger wiring with this amp. Also you need to make sure the power wire and ground wire are the same guage.(thickness)  
   The ground wire needs to be as short as possible from the amp to the metal of the car. 
  Make sure you are using a 14 guage or larger speaker wire form the amp to the speakers.

Jan 15, 2009 | Jl Audio 250/1 Car Audio Amplifier

1 Answer

Which amp do you guys prefer will bumps better on the jl 12w3v2?


jl audio is a good name to stand by for amps kickers amps sound good at a high vol but not at a low vol

Nov 30, 2008 | Jl Audio E1200 Car Audio Amplifier

1 Answer

Jl 250/1 amp dies out if i turn on other things


It sounds like you're not getting enough power to the amplifier.

With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.

Aug 14, 2008 | Jl Audio 250/1 Car Audio Amplifier

1 Answer

Low ohms light ! ! ! !


How are the speaker wired and what is the ihms for the speakers?

Dec 06, 2007 | Jl Audio 1000/1 Car Audio Amplifier

1 Answer

Sub makes loud noise when car is shut off


Does it make noise if the RCAs are unplugged? If not, the RCA shield on your head unit may be burned open.

If the amplifier is set to signal sense, it will take longer for the power light to go off.

Nov 13, 2007 | Jl Audio 250/1 Car Audio Amplifier

1 Answer

Jl amp


the overload protector of your unit it so sinsitive try to cutof the overload relay and then observe 20 min. monitor the allominum heatsink the temp. normal

Aug 27, 2007 | Jl Audio 250/1 Car Audio Amplifier

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