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3900

  1. T

    denon sa-3900 service manual and questions about caps.

    I have a denon sa-3900 amplifier that is quieter in one of the channels. I have thoroughly cleaned the switches and pots but that doesn't seem to be the issue. I have been pulling all the electrolytic capacitors of the board to check them but most seem to be within 20% of their rated value. So...
  2. C

    AU-3900 Loud static crackle pop - right channel

    Hi folks - I've been searching the internet and it seems that almost all roads lead to AK, so here I am. Probably good to know that I'm somewhat technically minded but know very little about the inner workings of audio equipment - but I'm also not afraid to wield a screwdriver and such! I...
  3. jozeppy26

    SX-3900 vs SX-1980

    Everyone is familiar with the Pioneer SX-1980 beastly stereo receiver. I get what’s special about it to a very limited extend: the insane 270 wpc, the 3 speaker channels, the heft and size, and the beauty of all analog. However, why doesn’t it’s successor, the SX-3900 get nearly as much love (I...
    • jozeppy26
    • Thread
    • 1980 3900 amp damping factor pioneer stereo receiver sx-1980 sx-3900 thd wpc
    • Replies: 48
    • Forum: Pioneer Audio
  4. L

    Pioneer sx3900 low fm volume

    Help please
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