Another humming rel subwoofer question

Discussion in 'Subwoofers' started by dUnKle, Dec 20, 2001.

  1. dUnKle

    dUnKle
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    For ages I had my REL connected with just the phono cable, but recently I have gone back and added the speaker connections as well ( as I have started to listen to more music and 2CH material )

    It sounds lovely but today I have just noticed something. I turned the amp off properly ( I usually put it into standby mode, but today I switched it off with the button on the front )

    It was then that the humming came into play ! As soon as the amp was switched back on the humming went and even in standby mode there is no hum.

    Any ideas ?
     
  2. Lowrider

    Lowrider
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    Sounds like an earth connection problem... did you connect anything new ?
     
  3. graham.myers

    graham.myers
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    forgive my ignorance.

    Whay do you need speaker connections and the phono connections. Does both do the same job. and whats the difference anyway?

    My THX kit said to use the phono, so I did without question
     
  4. dUnKle

    dUnKle
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    I used both so I can get better bass when the amp is set to direct mode.

    Did not connect anything new at all, just connected the sub up via the speaker connections as well.

    So whats the earth loop and can it be fixed ? I suppose all I have to do is either keep amp in standby or turn the sub off !
     
  5. Lowrider

    Lowrider
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    I had that problem when I connected another Rotel amp, I disconnected the earth on the amp´s power chord and it fixed the problem...
     
  6. kling

    kling
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    Did you connect the REL to the same output as the main speakers or are the speakers on 'A' and the sub on 'B'?
    If it's the latter, try using the same connector for both sub and speakers.

    Holger
     

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