Question about Jl Audio 300/4 Car Audio Amplifier

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JL audio Low ohms indication

My speakers are making a fuzzy noise each time I turn them on. I see that a solution may be the RCA cables, but I would I check them...Could I use a multimeter.

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Re: JL audio Low ohms indication

If the low impedance light is coming on, you may have shorted wiring or a defective speaker. Disconnect all of the speaker wires from the amp. If the light does not come on, reconnect one speaker at a time to see if you can find the one causing the problem. If the first one you connect causes the problem try a second one. If the light comes on with no speakers connected to the amplifier, the amplifier is in need of repair.

Posted on Oct 05, 2007

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So my jl 500/1 v2 has power and no audio... i get 3 ohm when i use the voltmeter on the amp the sub but no voltage? is this a fuse problem or am i an *** who has no idea how to troubleshoot

Okay lets go step by step. First check and sure you have battery voltage and twelve volt turn on on the remote term. of your amp. Be sure u have a ground also. Next take your speaker leads disconnect them and pop them with a battery, and make sure it pops. I(f that all passes you need to make sure your amp is getting an input signal because you could have a bad rca cable.

Aug 20, 2010 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

The low ohm light is amber... I have no noises coming out, when turning on the remote switch the low ohm light comes on a second before the power light comes on. I've used 8 gauge speaker and small small...

This means your subwoofer is not wired properly.
Remove the subwoofer wiring, and power on the system.
It is protecting itself from damage (if not already damaged).

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Dec 29, 2009 | Jl Audio 1000/1 Car Audio Amplifier

1 Answer

When i turn the volume up my jl 1000/1 amp turns off then turns back on when the volume is low what can i do to fix this?

2 things, either your pushing too much power into the imputs (if using high inputs) and clipping the signal, or your running the ohms too low (lower then the amp can handle safely) by running multiple speakers of too low an ohm each. For example if your amp is 4 ohm stable and your running 2 4 ohm speakers in parallel that makes 2ohms and the amp can't handle a load that low. You can consult your manual and it will give you illistrations of wiring and ohm loads

Oct 26, 2009 | Jl Audio 1000/1 Car Audio Amplifier

2 Answers

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

Jl audio 500/1 amp low ohm light at high volume

I would try running the subs in parallel. Pos to Pos Dual Voice, Neg to Neg Dual Voice. Then Run + to + stereo - to - stereo on both channels.
So you have + and - running to one channel and + and - running to the other channel.
Also your LPF filter could be set too high.

Feb 07, 2009 | Jl Audio 500/1 Car Audio Amplifier

2 Answers

Jl audio amp 1000/1 fix


Dec 22, 2008 | Jl Audio 1000/1 Car Audio Amplifier

1 Answer

Reset amp

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.

Aug 24, 2008 | Jl Audio Car Amplifiers

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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 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

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