Question about Jl Audio 1000/1 Car Audio Amplifier

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Jl amp the power is going to the amp but when i put the remote lead in to turn the amp on it drops the volt down to about 5 but jumps up and down a bit but that only heppens with the remote lead in and it is a 8oamp fuse have bin waiting to upgarde but just have not got round to it the fuse would only blow if i turned it up so it was not any where neer its max when it went

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The amp may have blown output transistors and that's why the voltage is being pulled down so far. This should have blown the fuse. If you're using an AGU fuse or there is corrosion, these could also cause the voltage to drop.

Measure the voltage across the fuse holder when you turn the amp on. If the voltage is more than 2v, replace the fuse.

Posted on Aug 11, 2008

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Amp cuts off at high volume


Problem could be that you need to upgrade your battery, do the "big 3" wiring by a professional. Get a kinetic 1200 or bigger to replace your stock battery, drive your car for 5 or 10 miles, and watch your amp not shut down. People just dont do the big 3, and they think their stock lead acid will hold 13 volts after the power is shut off. LOL. KINETIC.

Mar 31, 2012 | Jl Audio 1000/1 Car Audio Amplifier

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Wont turn on i bought it though craigslist


well this is what you do to check it to see if you bought a blown amp.
wire it into your car and then take a digital volt meter check to see if you have power and ground and remote turn on .


take the red lead and put it on the battery wire at amp and the black lead to the ground then see if you get 12volt to 14.4 use the amps ground for the black test lead if nothing you may have blown fuse or bad ground.

check the remote wire same way as about if you get 12 to 14.4 volt it works if not could be blown from radio or bad ground

checking the ground put the black meter lead on ground wire and the red lead on 12 volt power source if nothing a bad ground.

if your get voltage on the remote wire and battery wire and have good ground then you need to call the seller and get your money back ..

Oct 16, 2010 | Eclipse EA3422 Car Audio Amplifier

1 Answer

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

Main power and remote lead are both ~12v but when connnected to the amp, main power drops to ~2v while remote lead remains ~12v. the amp got tested and its good. whats wrong?


Due to the power required for most amp's, Most people place either an second battery in the boot of the car or fit Capacitor (power cap)
Which will then allow amp to consume the required power without making main power for the car drop.

Aug 11, 2010 | Jl Audio Class D E1400D Car Audio...

1 Answer

Can kicker 1000x1 amp detect if my speaker is bad and turn itself off?


The Kicker 1000x1 Amplifier does not turn off if their is an Open Line (blown sub) on the Speaker Terminals.

  1. Remove all Speaker Wiring from the Amplifier, leaving the Power, Ground, Remote, and RCA wires plugged in.
  2. If the Amplifier fails to turn on, check your Remote wire for power.
  3. If the Remote wire is powering up with the Head Unit (should be anywhere from 5-12 Volts), check your Power wire for +12 Volts, and check your Ground wire.
  4. If you are getting +12 Volts Power and your Remote wire is putting out 5-12 Volts but your Amplifier still won't turn on, it will need to be serviced.

Jul 24, 2010 | Kicker ZX10001 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

Jl amp


If the power supply feeding the amp is OK, it should have blown the fuse well before the voltage dropped to 5v. What size/type fuse do you have in the power wire feeding the amp?


Aug 11, 2008 | Jl Audio 1000/1 Car Audio Amplifier

1 Answer

Amp is randomally shutting off


If the amp shuts down with no pattern, you need to measure the DC voltage on the power terminals.

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.

Since there is no pattern, you will have to watch the meter for a while so you can see the meter drop when the amp shuts off. If the meter never drops on either the remote or B+ terminals (when the amp shuts off), the amp may have an internal fault.

Apr 25, 2008 | MA Audio M1889I Car Audio Amplifier

1 Answer

Dead amp


You have to go through an authorized dealer to get service from JL. Most good repair shops can repair most problems with them.

Before you send it off, confirm that you have good DC voltage at the remote and B+ terminals.

With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp 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.

Apr 16, 2008 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

2000 watt jl audio amp & car battery...


Make sure that you don't have any strands that would connect the remote lead to the constant +12 volts. Also make sure that your remote lead fromt the radio switches off when you shut the car off. If you don't have an aftermarket radio with a remote turn-on lead, tap into the ignition wire to the radio. Let me know what kind of car you have and I can point you in the right direction to get the right wire. Good luck.
-Andrew Hawkins

Apr 08, 2008 | Jl Audio 1000/1 Car Audio Amplifier

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