Question about Jl Audio 1000/1 Car Audio Amplifier
JL amps are somewhat sensitive to low voltage. Everything has to be perfect in the power supply feeding the amp. I'll assume that you have large enough wire. Check the owner's manual on the JL site. They likely recommend 4g or larger. You need to measure the voltage across the B+ and ground terminals of the amp. If it's dropping below ~11v when you turn the volume up, you need to determine why. Make the same measurements at the battery terminals. If there is significantly less voltage drop there when the volume is increased, check all of the points in the circuit where there could be a bad connection. Look for corrosion, over-heated connection on fuses or at the battery and make sure the fuse is in good physical condition. Some types tend to overheat and melt. If everything looks OK, begin measuring the voltage at each point where there is any sort of connector. If for example, you get a significant difference in the voltage on each side of the fuse, the fuse, the holder or the connections to the holder may be defective.
Posted on Oct 05, 2007
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Posted on Jan 02, 2017
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