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Denon 3802 hump at 50Hz???

Discussion in 'AV Receivers & Amplifiers' started by Paden, Jan 25, 2003.

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  1. Paden

    Paden
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    Was using the test tones discussed here & discovered a major peak at 50 Hz, coming through the mains & the sub so I'm suspecting my amp.
    I've tried disconnecting everything from the amp & have my CD player coupled optically, so don't think it's an earth loop.
    I've tried plugging the units into different sockets but it remains the same.
    I've thought about earthing the amp but wondered if there'd be any benefit in this & if it was a safe thing to do as it has no earth in the plug.
    Any suggestion appreciated :D

    Cheers, Paul
     
  2. magking

    magking
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    It can actually be your room that is causing this.
    My room has a dip at 70-80 and a peak at 30 hz.
    Try to read about acustics here on the forum and you'll learn alot about this.
     
  3. EvilMudge

    EvilMudge
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    Definitely sounds like a room resonance. Modern mid-high end kit shouldn't have any kind of bass enhancement, unless there is an option for some kind of 'Cinema Bass' on the 3802.
     
  4. Paden

    Paden
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    Thanks for your replies, looks like you were right.
    I'd tried moving my speakers & sub to various places round the room but it made no significant difference.
    Bought myself one of the Behringer Feedback Destroyers mentioned in another thread & that's basically sorted my problems :D

    Thanks again.

    Cheers, Paul
     

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