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  1. Val

    Hum when plugging new A-T headphone

    I just purchased Audio-Technica AD900 headphones. When I plug them directly into my sound card with the 1/8-inch connector they play OK but without much bass. Plugging them into my headphone amplifier with the 1/4-inch adaptor results in loud hum and noise. Juggling with the plug helps sometimes...
  2. Val

    Left channel on JMT PPA is kaput

    I am trying to get in contact with JMT in order to have my PPA headamp repaired. I sent them an email last week but got no reply. Any help would be appreciated.
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