Marantz 1090

Discussion in 'Marantz Audio' started by morgan, May 10, 2018.

  1. morgan

    morgan morgan

    Messages:
    163
    Location:
    Aiken, South Carolina
    I have a 1090 on the bench
    Everything checks out, but it takes about 10 seconds for it to produce sound.
    All power supply voltages are up to normal in about two seconds.
    Could this be a "soft start" unit?
     

     

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  2. Strgazr1967

    Strgazr1967 AK Subscriber Subscriber

    Messages:
    71
    There’s no protection relay or soft start option in the 1090 that I’m aware of. Give it some time and I guarantee there will be more people replying with much more knowledge then myself.
     
  3. wlhd1610

    wlhd1610 Penny and her new friend Sponsor Subscriber

    Messages:
    2,423
    Location:
    Catskill NY
    Both channels take 10 seconds?
    Only thing common to both is the power supply.
    Did you isolate the preamp/main in to see if it's the preamp that's lagging or the power amp?
    What did you use for the output coupling caps?

    Bob
     
  4. Leestereo

    Leestereo Super Member

    Messages:
    2,062
    Location:
    Ottawa, ON
    +1
    Instead of pre-main jumpers, this model uses internal switches and these are known to develop contact issues with time. Try using RCA interconnects to see if the issue is resolved.

    The 1090 is DC coupled; a nice sounding model, worthy of Restoration/Upgrade
     
  5. M3TZG3RHUND

    M3TZG3RHUND New Member

    Messages:
    4
    Location:
    Canada
    Strange, I bought a restored 1090 recently it does the same exact thing but sounds great otherwise.. . Is it result of THe capacitors used during a re-cap?

    Aside from a soft start should this be reason for concern with an amp
     
    Last edited: Sep 3, 2018

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