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Reset amp how do i get the amp to reset when the low ohms light comes on

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Remove the speaker load. If this does not solve the problem then your amp may be damaged from being connected to too low an impedance. Make sure your amp is capable of driving the speaker load you have connected to it. Ohms is a measure of the speaker's impedance. Lower ohms means higher load on the amp. Using a speaker with 4ohms is safe for car amplifiers, some can do 2ohms but very few can safely do less than that. You didn't specify the model but I'm guessing that all JL amps will do 2 ohms no problem.

Posted on Aug 26, 2008

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Jl audio 300/4 low ohms light wont go off


If the low ohms light is on then you have your speakers wired to low. I need to know some more info like what type of speakers you have running on this amp and how many. Also was it working before and then it started doing this? Check the ohms with a volt meter if you know how, if not just get a volt/ohm meter and set it to the ohms setting and then take the positive(red probe) and touch it to the positive terminal on the speaker and then the negative(black probe) to the negative terminal and see what it reads. Make sure you check how low in ohms your amp is capable of handling. If you don't know just google the model of your amp and you will find a site that has a manual or just go to JL audios web site and you should find out there with no problem. Let me know what you find so I can assist you more if need be cause I also repair amplifires for a living and have many years experienc and I'm the cheapest amp repair business you will find any where. Good luck

Aug 15, 2009 | Jl Audio 300/4 Car Audio Amplifier

1 Answer

Low ohm light comes on and loud humming sound comes from amp and sub have a j1000 and 13 w7


nice set up, how many speakers are you running? you have something wired up weird causing the ohm level to drop to low. we can fix this let me know and ill help you.

Mar 07, 2009 | Jl Audio 1000/1 Car Audio Amplifier

1 Answer

Amp Issues


1800W peak output at 2 ohms
975W peak output at 4 ohms
600W RMS (continuous) at 2 ohms
325W RMS (continuous) at 4 ohms
Variable LP crossover adjustable 35-250Hz
4 AWG power/ground inputs and RCA pass through
Low-pass filter
Bass boost 0-18dB adjustable remote punch bass EQ
Signal-to-noise ratio: >80dB
Line-level input


It is going into protect mode for a reason.
Disconnect the subs and turn everything on again. If the light comes on, the problem is internal and will need servicing by a technician.

Dec 22, 2008 | Ultra Linear UL-2200D Car Audio Amplifier

1 Answer

500/1- Low ohm light


Disconnect the speaker wires from the amplifier's terminal block. If the low ohm light still comes on with no speaker wires connected, the amplifier will need to be repaired.

If the light no longer comes on, check the speakers and the wiring.

Jul 15, 2008 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

Low ohm light on with now RCA's or speaker wires attached? What is going on???? Sound is crap it was working fine for the last year ????????


ohms are impedance or the amount of current being blocked through the line. The lower the ohms the less resistance. Speakers run at a certain ohm (or at least are recommended to run at). Have you bridged your amp? Usually when you bridge your amp it lowers the ohms by half. You may have damaged something, especially if you bridged your amp and didn't bridge it properly.

Jan 31, 2008 | Jl Audio 450/4 Car Audio Amplifier

1 Answer

Low ohm light on with no speakers connect??


This can happen if the amp has an internal fault such as a shorted output transistor.

Dec 26, 2007 | Jl Audio 300/4 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

2 Answers

Low ohm light wont go off


It's likely that the output transistors failed in the amplifier and it will need to be repaired.

Nov 08, 2007 | Jl Audio 500/1 Car Audio Amplifier

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