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Thread: Power amplifier repair - recommendations, please

  1. #1
    Join Date: Mar 2010

    Location: Cardiff

    Posts: 396
    I'm Rockabilly.

    Default Power amplifier repair - recommendations, please

    Hello all,

    I'm asking for advice from trusted members.

    Please would you recommend a service engineer who could repair my power amp?
    Thank you.
    I'm in the UK.

    The unit is twenty five years old but very much at the heart of my system and I hope to find a skilled and respected technician to keep it there for years to come.

    The amplifier is a Yamaha MX-1.
    I have the service manual; which includes circuit schematics, pcb topology and component lists.
    I will be able to describe the faults in detail.

    For info:

    http://www.thevintageknob.org/yamaha-MX-1.html

    https://www.hifiengine.com/manual_li...aha/mx-1.shtml

    https://youtu.be/-N00OZtpQGg

    Thanks.
    Johnny Dodgem.

    Cartridges vintage MMs including Pickering xsv-4000/xsv-3000 : Stanton 881s/D81 : AT140LC/VMN40ML
    Spinners hot rod 1210 (Jelco 750D, Origami, Ammonite, Longdog, Vantage, Achromats) : Pye G63 & Garrard AT6 : Two full custom Lencos : Kenwood KD-650D
    Streaming Qobuz : BluOS & Node2 (Fidelity Audio modified) : RME ADI-2 DAC
    Pre-amps Tron Seven (GT modified) : Conrad Johnson EV1 : Croft Micro 25 : Decware ZStage
    Power Amps PrimaLuna ProLogue 5 (KT120) : PrimaLuna ProLogue 4 (KT77)
    Speakers The Edingdale : Meadowlark Hot Rod Shearwater

  2. #2
    Join Date: Apr 2012

    Location: N E Kent

    Posts: 51,625
    I'm Geoff.

    Default

    Ask Alan (Firebottle). His trade thread is here: https://theartofsound.net/forum/foru...?96-Firebottle
    It is impossible for anything digital to sound analogue, because it isn't analogue!

  3. #3
    Join Date: Oct 2012

    Location: The Black Country

    Posts: 6,089
    I'm Alan.

    Default

    Hi Johnny, happy to take a look at it.

    Can you describe the faults?

  4. #4
    Join Date: Mar 2010

    Location: Cardiff

    Posts: 396
    I'm Rockabilly.

    Default

    Thank you Alan.
    I'll reply via PM shortly.
    Johnny Dodgem.

    Cartridges vintage MMs including Pickering xsv-4000/xsv-3000 : Stanton 881s/D81 : AT140LC/VMN40ML
    Spinners hot rod 1210 (Jelco 750D, Origami, Ammonite, Longdog, Vantage, Achromats) : Pye G63 & Garrard AT6 : Two full custom Lencos : Kenwood KD-650D
    Streaming Qobuz : BluOS & Node2 (Fidelity Audio modified) : RME ADI-2 DAC
    Pre-amps Tron Seven (GT modified) : Conrad Johnson EV1 : Croft Micro 25 : Decware ZStage
    Power Amps PrimaLuna ProLogue 5 (KT120) : PrimaLuna ProLogue 4 (KT77)
    Speakers The Edingdale : Meadowlark Hot Rod Shearwater

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