Recent content by gsxtasy

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    JL 500/1 Input Sensitivity Setting-Low output voltage

    I had the subwoofer ON, and the subwoofer at +12 when doing this test. I'm almost positive the pre out driver in the headunit got fried from a pinched RCA or something like that.
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    JL 500/1 Input Sensitivity Setting-Low output voltage

    After some help and more diagnosing, it appears to be a head unit issue. It is not providing enough voltage to the pre-outs. With a 50hz sine wave playing at 80% volume I am only getting around 100mV to the sub outs on the head unit.... I am unsure why, as this head unit is only a few months old.
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    JL 500/1 Input Sensitivity Setting-Low output voltage

    I had the 'input voltage switch' set to low, as the manual recommends. I also tried it on high and it makes the voltage even lower.
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    JL 500/1 Input Sensitivity Setting-Low output voltage

    Alright, so I have this JL 500/1, and I just put in a new 8w7 and hooked it all up and it was pretty quiet, so I went to adjust the input sensitivity as described by the manual. So I get it all setup, and even with the gain all the way clockwise, while running a 50hz sine tone, I am still only...
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    JL 500/1 Amplifier whine(not alternator whine)

    Bummer. Is that repairable?
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    JL 500/1 Amplifier whine(not alternator whine)

    Alright, so I just picked up a used JL 500/1 supposedly in working condition, guy swears it works fine, but never verified it. So I pull out my working alpine amp, and put in the JL, hook it up and the power light illuminates like it is supposed to. However, after it has power for a few seconds...
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