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430

  1. K

    Nakamichi 410, 420, & 430

    Hey all. New to the audio world. My in-laws are getting rid of things and I’m trying to decide if I should keep these. Very good, clean, and working condition. What are these worth? Quality compared to other equipment out there? Any guidance would be appreciated!!!
  2. robz2000

    Harman Kardon 430 Crackling Issue

    Hi, I'm trying to do a restore on a harman Kardon 430. should be simple enough. But I've come across an issue i cannot track down. There is a crackle at all volumes. not a hum, but crackle. It occurs through headphones & the speakers. in both channels. it has to be the pre amp i would think...
    • robz2000
    • Thread
    • 430 crackle harman kardon vintage receiver
    • Replies: 17
    • Forum: Solid State
  3. JB8

    HARMAN KARDON 430 - Oscillating DC Voltage At Speaker Terminal

    Hey All, I've read several threads on this issue, feels like I've checked most of the viable culprits but I need some help, please. ISSUE: Wildly fluctuating DC voltage at left speaker terminal, both spkrs 1 & 2 With DMM in 600 range, out of necessity, the voltage is quickly bouncing around...
    • JB8
    • Thread
    • 430 dc voltage dc voltage on output harman kardon harman kardon 430 speaker terminal transistor replacement
    • Replies: 6
    • Forum: Solid State
  4. dlucy

    dlucy's guide to Harman Kardon Twin Powered series 430, 630, 730 and 930 ... and Montgomery Ward 450

    The fourth era of Harman Kardon's solid state stereo receivers were the Twin Powered series: This thread is a guide to those models, their specs, and pointers to schematics and restoration threads for each. Note: If you have additional information on any of these models or have a great...
    • dlucy
    • Thread
    • 430 630 730 930 harman kardon harman kardon 430 harman kardon 630 harman kardon 730 harman kardon 930 hk
    • Replies: 24
    • Forum: Solid State
  5. W

    Heavier counterweight for Realistic?

    Greetings, guys/gals! Long time listener, first time caller here. Hoping you may be able to point me in the right direction.:) My question is in regard to a Realistic Lab-430. Paired with a MCS 3248 it has served it's purpose (and budget- huge emphasis here) for me for a few years now. Nothing...
    • waxonly
    • Thread
    • 430 counterweight lab-430 lab430 realistic
    • Replies: 5
    • Forum: Turntables
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