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900+

  1. J

    Harman Kardon 900+ Repair

    All- I have picked up Harman Kardon 900+ Quadraphonic Receiver. I know, I know. But I was able to negotiate a fair price and I couldn't resist. There are a couple features about it that I really like: Quadraphonic / Stereo switch. In the stereo mode, this bridges the amplifiers and give me...
    • Jaman87
    • Thread
    • 900+ harrman kardon quadraphonic
    • Replies: 10
    • Forum: Solid State
  2. Dean Rantala

    Harman Kardon 900+, few questions

    Purchased this old gem some 15 years ago. Over the years, it has needed a couple transistors and a half-hearted re-cap of the 4 amp boards. A couple years back, one of the channels of the phono inputs went out, the noise in the amp section has become horrid and finally.... one channel has...
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