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Subwoofer PSW2000 fault/ denon 3802

Discussion in 'Subwoofers' started by Cygnus1, Jun 30, 2002.

  1. Cygnus1

    Cygnus1
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    8 months ago I bouught the Kef egg speakers/ psw2000 subwoofer & a Denon 3802 amp. Everything worked well until
    Saturday... started hearing a buzzing/hummimg noise coming from ALL speakers. Its only noticable during the quieter times
    ie during speech with no soundtrack playing But its very annoying.

    OK I thought a loose connection and went & checked all connections which seemed OK. 2 hours later I found the problem
    the subwoofer. There is no hum/buzz from the sub but when I
    plug the IXOS subwoofer cable into the back of the amp the 5
    speakers start to buzz. All I need to do is plug the subwoofer
    in I dont have to switch it on !!!! If I unplug the sub or unplug
    the subwoofer cable the speakers are OK as normal.

    I've tried moving the sub & using a different mains socket
    even by an extension lead into the kitchen but as they have
    worked for the last 8 months I think

    1. Subwoofer Problem Maybe transformer?

    2. Denon 3802 Problem passing unwanted "Noise" from the sub
    to all speakers.


    Has anyone got any ideas? I at least want to find which
    piece of equipment has the problem before I find/send it to a
    dealer. Oh the curse of buying mail order BUT thats another
    story


    Best Regards

    Steve
     
  2. magking

    magking
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    The buzz would'nt happen to be 50hz?
    It may be the ground that is your problem. If the sub is grounded and the amp "makes" its own ground this may happen.
    But why was'nt there a problem from the beginning?
    Have you done something with your electric system lately, are you sure there is not power in the ground?
    Just ideas, try disconnecting the ground and see.
     
  3. Geoffc10

    Geoffc10
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    my dads a qualified electrician, he advises not to disconnect the ground, you might end up getting a nasty suprise, its there for a reason, i would take the sub back and try a different model, or maybe it is a faulty model.
     
  4. Cygnus1

    Cygnus1
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    Hmm read around the internet for a bit definately sounds like a
    "Ground Loop" problem.

    Wait till next weekend & take my system 2 bits n re-assemble!!

    Anybody know where I can get a "ground loop isolator for
    my Home Cinema set up in the UK ?
     

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