Question about Jl Audio 250/1 Car Audio Amplifier

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Jl audio 250/1 amp

My amp has power but nothing happens dont know what it is can anyone help me and the low light stays on cant get it off thank you if you can help ever n lexington kentucky i will help you if i can

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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.

Posted on Feb 22, 2009

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I have a Jl Audio 250/1 mono block amp and the thermal light keeps coming on what could be causing this?


It could be a number of things? 1 to many subs, speakers wired to the amp causing it to overheat and making the thermal light come on. 2 It all depends were your amp is. If it's clear and nothing covering it, obstructing it, Ie sub in front of it, amp inbetween the rear seats and sub.

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Disconnect all speaker wires from the amp and disconnect the RCA cables from the amp. If it still goes into protect mode, use a multimeter to confirm that you have 12v on the B+ and remote terminals. Place the black meter probe on the ground terminal of the amp when measuring the voltage. If the voltage is sufficient and the amp goes into protect, it will have to be repaired. JL only accepts repairs from authorized dealers. You'll have to find one in your area or you'll have to find a repair shop willing to work on JL amps.

Let me know if you have any other questions.

Oct 15, 2008 | Jl Audio 250/1 Car Audio Amplifier

1 Answer

My jl Auido 250/1 amp


You may have a bad output on the amplifier. I would recommend taking it to a local electronics repair to have fixed, or visit a local stereo shop - preferably a JL Audio dealer. Visit their website at www.jlaudio.com to find a dealer near you. You can have your amplifier sent in to JL Audio for repair by an authorized dealer and you'll get a warranty on the repair work.

Sep 27, 2008 | Jl Audio 250/1 Car Audio Amplifier

1 Answer

Hey quick question on JL 300/4V2 impedience light


If you're referring to the orange "Low ohm" light, it's most likely caused by the amp detecting a "lower than optimum" impedance for it's gain setting. The quick answer is you'll probably have to go through the steps outlined in Appendix A of the owner's manual. This will set the amp gain and input voltage setting properly for your speaker and head unit setup.

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This sounds odd, but try putting your subs out of phase from the mains. Just see if it changes anything.

Feb 16, 2008 | Jl Audio 250/1 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

500/5


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Check the earthing of the amp is adequate. It sounds like the amp is floating without an earth until you earth the rca outer.

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