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marantz 8b

  1. M

    Preamp you love with your 8b

    Let’s keep the 7c out of the conversation. It’s on my bucket list and someday I’ll own one. I’ve found my keeper amp. Love everything about it. I’d like to hear what everyone else has tried with an 8b and been happy with and what you like about the pairing. I realize speaker and source choices...
  2. D

    Marantz 8B Restoration

    Hello everyone, I recently picked up a Marantz 8B. It was sitting in a storage area in a church that had been shut down. The local diocese was trying to sell or get rid of whatever they could that was in the building, so I went to get some office furniture on the cheap. I didn't even know...
    • Derek Miller
    • Thread
    • marantz 8b restoration help restoration novice restoration project tube amp amplifier
    • Replies: 30
    • Forum: Tube Audio
  3. IOANNIS

    RECREATE OLD MARANTZ 8B IN PCB.....

    I need your opinion not ready 100% ,but you can see it
  4. junkscience

    Any thoughts on speaker sensitivity and vintage amplifiers

    Any thoughts on speaker sensitivity and vintage amplifiers My reference system amp has been sent out for repair. I have now rotated into the lead position, a vintage Marantz 8b, one of the great amps. It has previously been providing excellent sound in a secondary room, not my listen room...
    • junkscience
    • Thread
    • acoustic research ar-4 marantz 8b speaker sensitivity
    • Replies: 15
    • Forum: Speakers
  5. junkscience

    Question re: Marantz 8b high voltage power supply diodes

    Question regarding Marantz 8b high voltage power supply HV PSU diodes replacement I am restoring a Marantz 8b amplifier. It is a straight forward decision to replace the selenium rectifier. It seems that this would be the opportune time to also replace the high voltage power supply diodes...
    • junkscience
    • Thread
    • bias voltage diodes high voltage power supply marantz 8b rectifier selenium
    • Replies: 18
    • Forum: Tube Audio
  6. fogf1

    Marantz 8B bias(?) issue question.

    Hi all, First let me say that I think this site is a fantastic resource for gear suggestions and troubleshooting help! I've picked up a lot of good advice just by reading through the threads. So here's the gig.... I've been given a Marantz 8B to work on for someone and I've hit a brick wall with...
  7. C

    Marantz 8B help needed!

    I purchased a Craigslist Marantz 8B recently and am in love with it so far but I recently moved and ever since I can’t get it to bias properly - even with the pots maxed out it is still maybe 25% of the way short of the mark. Those of you that are experts out here can maybe help me. I took a pic...
  8. BT709

    Marantz 8B Brought back to life and sounds great... but...

    So... I bought this Marantz 8B up from an old friend. It hadn't been run for at least ten years and the full history is cloudy. I gradually brought it up to voltage over several hours to reform the caps. Used a variac and monitored the amperage. It biases perfectly and holds. Been listening to...
    • BT709
    • Thread
    • marantz 8b repair tube amp help
    • Replies: 52
    • Forum: Tube Audio
  9. S

    Need advice on amp strategy

    I've got a pair of Martin Logan Aerius speakers that I want to drive with a few Marantz vintage amps. I'm currently driving them with a 300DC from a 7t listening to vinyl and open reel tape. It all sounds great, but I've always wanted to drive them with tubes. I bought a working 8b that's on its...
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