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ka-801

  1. Stack

    Kenwood KA-801: powers on intermittently

    I've been having a very strange issue with my Kenwood KA-801 recently and was wondering if somebody could point me in the right direction for starting my troubleshooting: Recently, the amp has been having intermittent issues powering on, and it's been getting worse. 1 time in 10 the amp will...
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    • Thread
    • intermittent ka-801 kenwood power
    • Replies: 10
    • Forum: Solid State
  2. Stack

    Kenwood KA-801 Phono Preamp Capacitive load: Please help me understand schematic

    Hi, I'm trying to determine the capacitive load for my Kenwood KA-801 preamp section (to see if I need to buy a preamp or modify the circuit to handle an AT-VM540ML cart), and I'm honestly in a bit over my head. I have the schematic of the preamp section but I'm not sure which caps would...
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    • Thread
    • capacitive ka-801 kenwood load preamp
    • Replies: 4
    • Forum: Solid State
  3. Theo A

    Help with Kenwood KA-801

    Hey everyone, I picked up a vintage kenwood from the late 70s today. I was told that one or both of the channels comes in and out, and there is a “crackling” when they touch the controls. Easy fix, I thought, so I cleaned all switches and pots with dexoit. The problem is still there though, so...
  4. ajfink

    Kenwood KA-801 Control Board

    Hi all, The commonly available service manuals for the KA-801 are incomplete in their parts lists, especially with regards to the phono and front control boards. Some elements can be pieced together from what is there, but I recently had three resistors in the control board go up in smoke...
  5. Stack

    Kenwood KA-801 bias and preamp DC Offset questions

    Hi, I've recently recapped my KA-801 and wanted to fine tune things. I've had specific problems with the bias and DC offset, and was wondering if anybody could lend ke some friendly advice. For the preamp DC offset (which I'm now thinking I should've left alone in the first place) the spec...
  6. Stack

    Problems adjusting Preamp Offset, Power offset, Bias on Kenwood KA-801

    Hi, For those people wanting to attempt to calibrate their KA-801 or similar Kenwood machine after a recapping project, I wanted to document the troubles I faced and ask for advice on a few key points. A side note: for this project, you will need a multimeter. I used an early 2010s Radio...
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    • Thread
    • amp bias dc offset ka-801 kenwood kenwood ka-801 preamp
    • Replies: 1
    • Forum: Solid State
  7. Stack

    Speaker recommendations for Kenwood KA-801 amp.

    So, I have a bit of an upgrade bug... It's become apparent that after years of upgrading various components one by one, my Realistic Mach 2 speakers are the weakest point in my current setup. Now, don't get me wrong. The Mach 2's are excellent for cranking volume and served me well for years...
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