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harman kardon

  1. HMrules

    Replacing Rotel RA-985BX: HK 6650R vs. Pioneer A-77X for JBL ES90?

    Hi everyone, I am considering selling my current integrated amplifier, a Rotel RA-985BX, and upgrading to something that fits my sonic preferences and speakers better. I have narrowed down my choices to two specific models available to me: the Harman Kardon HK 6650R and the Pioneer A-77X. My...
    • HMrules
    • Thread
    • harman kardon jbl pioneer rotel
    • Replies: 0
    • Forum: Solid State
  2. jmac95

    Asking about a Harman Kardon Stratophonic SA2000

    Good morning and hello! I’m new to AK and relatively new to the world of vintage audio. I got started in home theater equipment about a year or so ago and delved into vintage in the past half a year thanks to some Bose 301 IIIs given to me by a professor. I’ve done some simple repairs before...
    • jmac95
    • Thread
    • 1960s harman kardon integrated amplifier solid state amplifier
    • Replies: 0
    • Forum: Solid State
  3. richiem46

    Picked up a Harman Kardon Citation Twelve Power Amplifier Today

    I went to an Estate sale today and picked up a Harman Kardon Citation Twelve Power Amplifier on a whim for $40. I was unfamiliar with the model but it was in great shape cosmetically so I fugured for $40 I had not much to loose. When I got it home I put it on the DBT and there were no issues...
    • richiem46
    • Thread
    • citation twelve power amplifier harman kardon
    • Replies: 8
    • Forum: Solid State
  4. P

    Harman kardon 330b to mixer help

    Hello everyone, I am a new friend here, even if I often follow your discussions, that's why I'm here to ask you for some help. I am willing to buy an amplifier for my Dual 1219 turntable. I would like something to keep the vintage vibe of my Dual, nice but not crazy expensive, and after reading...
    • Paseppa
    • Thread
    • dual turntable harman kardon harman kardon 330b speakers
    • Replies: 0
    • Forum: Solid State
  5. plbeard

    60s Hifi Tube Amp Repair in Northeast?

    I am looking for tube amp repair in the Northeast (although the location may be moot, as it made need to be shipped regardless). These are mid-60s amps by Dynaco (a stereo pre-amp) and Harman Kardon (A500) that work but need modest repair or rehab. No MacIntosh-type stuff, but good. I am near...
    • plbeard
    • Thread
    • dynacco harman kardon repair amplifier tube amp amplifier
    • Replies: 11
    • Forum: Tube Audio
  6. puma1824

    Harman Kardon Citation 22 - Remote Power On not working

    Harman Kardon Citation 22 - Remote Power On not working. Any ideas why remote on wouldn't work? I measure the trigger output from the mini jack cable and it reads 12v when on and 0v when off but using it on the Citation 22 doesn't trigger to turn off or on. It remains on even if a cable is...
    • puma1824
    • Thread
    • citation citation twentytwo harman kardan 230 harman kardon harmon kad twentytwo
    • Replies: 22
    • Forum: Solid State
  7. justinfranx

    Help with Harman Kardon A401 Tone Control Please!

    I recently picked up a Harman Kardon A401 to use in a stereo console project I am working on. I have some background with soldering and repairing things if I have clear instruction but have not gone deep enough into stereo gear to know how to diagnose/ trace down trouble spots. I replaced the...
    • justinfranx
    • Thread
    • harman kardon help needed hk hk a401 tone control issues
    • Replies: 14
    • Forum: DIY
  8. MiguelSarmi

    What to get?

    Hello everyone. Hope you are all alright. I need help choosing the following units I found for sale but cannot audition them as they’re all a while away from me. The choices I have will be paired with either a Boston Acoustics HD5 or Celestion 1 (no passive subwoofer) speakers. My studio...
  9. SuperjazzyJa

    What's your perfect day weather wise?

    Before I even begin, I already know what kinds of reactions my perfect day is going to receive: :yikes::crazy::wtf:, etc and that's okay. ;) My perfect day is 20° F/-6.7° C or colder, as low as neg 10/neg 23.3, 17% humidity or lower, sunny and very little to no wind. Jan 94 in NJ was when I saw...
  10. SuperjazzyJa

    Classic Songs reinvented for modern tech

    What if songs that we all know and love from the 20th century were recorded in reference to the technology of today? Bluetooth Woman - Santana Smartphone Has Broken - Cat Stevens Virtual Me, Virtual You - ABBA BlackBerry - Black Sabbath I Only Have Eyes For My Phone - The Flamingos
    • SuperjazzyJa
    • Thread
    • bobsvinyl harman kardon muse chaser spe@ker_box
    • Replies: 425
    • Forum: Gaming
  11. mcaddie7

    What Harman Kardon is this?

    Hey all, I’m looking for another HK receiver and found a 150+ for sale. However, the front plate has the tuner dial of the 900+. Is this a late production model of the 150 and they switched the tuner dial before switching over to making the 900+. Anything to look out for with these that will...
  12. K

    HARMAN Kardon HK 665 vxi restoration question

    a question : what is normal temperature of this amplifier? It is known that they run warm but I have not found more specific information background: - a few weeks back I got hk 665vxi to my must have vintage collection. Unit I got was working but gave every now and then static noise at random...
    • kotli79
    • Thread
    • 665vxi harman kardon hk-665vxi hk665vxi recap and restoration temperature
    • Replies: 0
    • Forum: Solid State
  13. dlucy

    Harman Kardon AVR series DSP servicing guide

    A guide to servicing the DSP circuitry in Harman Kardon AVR series receivers
  14. dlucy

    Harman Kardon AVR series training for protection circuit feature

    A training doc from HK on protection circuit in the AVR series of receivers
    • dlucy
    • Thread
    • avr harman kardon protection
    • Replies: 0
    • Forum: Solid State
  15. F

    Barrier to entry on custom cabinets?

    Gave away my old broken vintage piece to an old pal. Been using my H/K 3390, love it to death but there's a small hole in my heart that only a slab of finely sanded and oil wood can cover. It's probably as simple as gluing 4 pieces together, but then I have to look into vent holes, screw holes...
  16. A

    Question about the microcontroller dump Harman Kardon HK3770/230

    Hi. Maybe someone can help with the STM32F205ZGT6 microcontroller dump. Which is located on the CUP12620 chip in the Harman Kardon HK3770/230 amplifier. I would be very grateful. I can't find it. Thank you.
  17. troutmaskrep

    Harman Kardon 330A transistor substitution woes - help needed

    I’m working on restoring a Harman Kardon 330a amplifier that was blowing fuses due to multiple shorted transistors. Among other issues, one of the four CDC8002/9002 “flying saucer” transistors was blown. Following advice from an old thread on a different amplifier model, I replaced all four with...
    • troutmaskrep
    • Thread
    • 330a harman kardon repair transistor substitution
    • Replies: 19
    • Forum: Solid State
  18. dlucy

    Harman Kardon A-402 has a matching tuner HK T-403

    I should have guessed this, but it hadn’t dawned on me to look for a matching tuner for the HK A-402 integrated amp. Now a photo showed up elsewhere… and they look awesome together.
    • dlucy
    • Thread
    • harman kardon harman kardon a-402 hk a-402 hk t-403
    • Replies: 4
    • Forum: Solid State
  19. L

    Polk RT3 vs Boston Acoustics HD5 + HK/Kenwood receiver

    I need help completing my setup in my dining room, fairly small (fits a 10-seater table). The only thing that i have right now is a Dual 1218 turntable w/ B&O SP12 stylus (that I picked up as junk and I have yet to actually repair). I've settled on the following choices for speakers and...
    • law852
    • Thread
    • boston acoustics harman kardon kenwood polk
    • Replies: 0
    • Forum: Speakers
  20. A

    Rotel 203A - Great little receiver!

    I have been shopping quite a bit lately. I noticed this Rotel 203A on marketplace. It had been on there for a longtime. I had never heard of the brand so I just kept looking. Weeks went by and this thing was still on there. I finally did some homework on this and read many reviews about how good...
    • ArizonaOne
    • Thread
    • harman kardon pioneer rotel sansui yamaha cr 1040
    • Replies: 1
    • Forum: Solid State
  21. lebrun53

    Harman Kardon HK-825 flashing power LED

    I have a HK-825 on the bench that is working 100% except for the power LED. Per the manual, it is supposed to flash until the unit comes out of protection... about 8 seconds. The LED on this unit will flash once, and stay off until the unit comes out of protection, then is goes solid, as it...
    • lebrun53
    • Thread
    • harman kardon hk-825 sansui protection circuit
    • Replies: 2
    • Forum: Solid State
  22. dlucy

    Who has experience repairing or restoring Harman Kardon gear? What have you worked on?

    We get a good number of threads here on AK with questions about Harman Kardon audio gear... and we have lots of people who chime in with their firsthand experience. I'm curious as to who all here has repaired or restored or recapped any Harman Kardon receivers, amps, equalizers, tape decks...
  23. A

    Capacitor replacement question Harman Kardon Citation 22

    Hi, I have a Citation 22 I bought new in 1989, that I took apart to chase down a DC output issue. I'm thinking the DC output may be related to cracked solder joints in the pre-driver board with loose transistors, as when I moved that board or banged it, the DC output would increase or go away...
    • AndrewL
    • Thread
    • capacitor replacement citation 22 coupling capacitor failed capacitors harman kardon
    • Replies: 11
    • Forum: Solid State
  24. tlann

    Harman Kardon 230A basic upgrades/restoration

    Hey all — I have a Harman Kardon 230A from the “minimalist” HK era, and it sounds sweet. Very warm but still nicely defined. So I should caveat what I’m about to ask by saying that I already am quite pleased with the amp. But I recently hooked it up to my Klipsch Heresys, and the sound is so...
    • tlann
    • Thread
    • harman kardon harman kardon 230a harman kardon minimalist heresy klipsch recap and restoration
    • Replies: 3
    • Forum: Solid State
  25. notabot

    Harman Kardon A300 Missing Insulated/"Hot" Can

    Hi, I'm very new to tube audio and I'm feeling like I'm in over my head. I learned how to swim with my father throwing me into the deep end of the pool, and that's stuck with me ever since. Anyway, I can't find anything about this issue even after extensive Googling (probably not using the...
    • notabot
    • Thread
    • a300 can harman kardon harman kardon a300 hk hk a300 insulated missing rear
    • Replies: 27
    • Forum: Tube Audio
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