Question about Jl Audio 500/1 Car Audio Amplifier

3 Answers

Rca Connection yeah on my 500/1 i think there is a problem with the Rca connections the green light turns on and it plays some songs normal and other songs it wont pick up the deep bass notes its like it just shuts off i can here music coming from my sub but no bass,Do you think you could help me with this. Thanks,Tim

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  • AudioFreak Jun 07, 2008

    i think the sub is fine its a 4ohm DVC and it wired down to 2ohms is there anything else it could be?

  • AudioFreak Jun 07, 2008

    i have a wierd problem with my 500/1 when i put just 1 of the rca cables in to the +positive connection it plays the song great but when i put both in there isnt any bass and also sometimes it play a song and sometimes it doesnt.I really dont know what is going on i have owned several amps and never had this problem.But this is my first JL Audio amp tell me its just me and not the amp.

    Thanks

  • AudioFreak Jun 07, 2008

    Yeah the songs are louder thats probably whats wrong how do i fix this problem.Also
    it only plays songs with one rca connected
    and thats on the positve side.

  • AudioFreak Jun 07, 2008

    KnuKocepts Kollosus Flex 8awg with 1 midi anl fuse holder 50amp fuse about 6 inches from the amp and another anl midi 50 amp fuse
    near the battery.

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3 Answers

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  • 2,035 Answers

When it comes to installation considerations, it’s damn hard to find anything about the 500/1 to not like. For a start, there are the chassis-mounted RCA connections. By comparison, the input connectors on most amps are unimaginably flimsy. The preamp section of the 500/1 is also quite impressive. Much like the 300/4 that we reviewed a few issues back, its flexibility and degree of control are head and shoulders above anything else that I’ve seen in an automotive amplifier. Among my favorite features are the detented frequency controls found on the crossovers, bass boost, and infrasonic filter. Rather than continuously variable pots, these controls utilize stepped adjustments and the owner’s manual lists the exact frequency at each click. The parametric bass boost is another very cool gadget. The center frequency adjustment covers a wide and sensible range of 20 Hz to 80 Hz, the bandwidth adjustment (Q) ranges from very narrow to ridiculously wide and the circuit can be completely bypassed if you so desire. Equally impressive (in a test-bench-geek kinda way), is that the circuit doesn’t effect the amp’s response at all if the boost knob is dialed to 0 dB. All of the amp’s filters are similarly well behaved. The infrasonic filter covers a far wider range than typical, so wide in fact, that it overlaps the lower half of the crossover’s range. It’s possible to nearly eliminate all output from the amp by misusing these controls. How’s that for flexibility?
On top of all that, you get a pair of buffered RCA outputs with an independent crossover with the same cool controls, a heat sink that’s more than just a heat storage device, and an amp that won’t quit no matter how heartlessly you drive it. The amp’s protection circuits cause it to reduce output rather than shut down completely.

Posted on Jun 07, 2008

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With this amp, the amp’s protection circuits cause it to reduce output rather than shut down completely if it is about to overload. The songs it turns off on, are they much louder or would they draw more power? I think this may be your problem. Does this sound right to you?

Posted on Jun 07, 2008

  • 3 more comments 
  • Benjamin Patri
    Benjamin Patri Jun 07, 2008

    well, the protection circuits are protecting the unit from frying itself, so the only thing to really do to change this is to put a different set of protection circuits in or just bypass them completely but then this will void any warranty and could cause the device to fry. You may just not have enough power to run both cables, do both cables provide the right amount of sound when connected separately? If so, I think it may not be able to handle more than one or it needs more power.

  • Benjamin Patri
    Benjamin Patri Jun 07, 2008

    Perhaps the gauge of your wires needs to be changed otherwise, what are you using?

  • Benjamin Patri
    Benjamin Patri Jun 07, 2008

    Everything sounds fine with the system. How loud are you playing it? If anything, I would just give the manufacturer a call and see if they would suggest anything else but as far as I can see it is working like it should and you have everything hooked up fine. The gauge is a little more than what I would use but should be fine

  • Benjamin Patri
    Benjamin Patri Jun 10, 2008

    If you are satisfied with your experience here, then feel free to provide me with some feedback by
    rating my solution. If you need any more help, I would be glad to
    assist you, just ask.





    Thanks for your time and service and I hope you have a Great Day!

  • Benjamin Patri
    Benjamin Patri Jun 28, 2008

    If you are satisfied with your experience here, then feel
    free to provide me with some feedback by rating my solution. If you need any
    more help, I would be glad to assist you, just ask.



    Thanks for your time and service and I hope you have a Great Day!




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More then rca connection seems to be a problem with speakers

Posted on Jun 07, 2008

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