Help I have a jl audio 250x1 amp was working well but now i have to ground the rca's in order for sound to come out didnt have to before dont know what happened i have to ground the outside of the rca or else only a little bit of sound comes out
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If your sub isn't loud enough you may want to look into a few things;
1. What type of amp you're using and its output rating 2. The gauge of your power, ground, and speaker wiring 3. The condition and type of enclosure you are using 4. Check to make sure the speaker cables don't touch, because this can cause it to ground itself out and produce little to no sound. 5. Check the RCA connections and make sure they are in order
Check the remote lead and see if it is getting power at the amp when it won't come on that way you know if the issue is with the head unit or the amplifier.
Yes it possible that the inputs have been damaged on the circuit board of the amp. If the amp has hi level inputs you could try running a speaker wire input to it and see if it works. You might try another pair of rca cables to.
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.
IVE HAD 2 JL 1000/1S DO THIS TO ME EACH TIME ITS TURNED OUT TO BE A SHORT IN THE RCA IMPUT BUT ALSO CHECK YOUR RCA CABLES AND THE SUB INPUT ON YOUR HEADUNIT
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.
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