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poa

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    Denon POA 4400 DC Offset

    Hi People, I've got a Denon 4400a that has a DC offset of 45mv on both A and B channel outputs. When trying to adjust the bias as per the service manual I cant reduce this figure down and lower no matter what adjustments to the variable resistors for the bias. I'm wondering if 45mv is too...
  2. B

    DENON POA 1001 (Power Amp) buzzing

    Hi, Just bought a nice DENON POA 1001 power Amp. I love this 22kg baby But it is buzzing. Here are the result of investigations : - The amplifier itself is buzzing, the sound in the speaker is good, there is no significant hum. - Buzzing is present with or without source/preamp, with or...
    • bmwz8
    • Thread
    • buzz buzzing denon poa power amp issue
    • Replies: 7
    • Forum: DIY
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