Question about Jensen JHT525 System

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Subwoofer hum My subwoofer hums even when I disconnect the cables leading from my other auto equipment. THe subwoofer continues to hum even though there nothing is attached - is is simply plugged into the ac outlet. Can you suggest what might be the problem?

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  • Stevieboy777 May 18, 2009

    Same problem, no RCA's plugged in - just the sub. I took it back today to get a new one as it was a week old and guess what?



    ...it's the same.



    I've been told it is the ground being shared with my amp - I should get a groundloop isolator???

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  • Master
  • 6,966 Answers

Hi,

Based on your description, the internal power supply of the subwoofer amplifier would be suspect. Often it would be a blistered or leaking filter capacitor. It is a relatively easy/inexpensive repair.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information. Good luck and kind regards. Thank you for using FixYa.

Posted on Nov 10, 2008

  • frontline5 Jun 04, 2011

    I think I have the same problem, how do you go about fixing it?

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