Marantz 1090

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

  1. morgan

    morgan morgan

    Messages:
    162
    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:
    67
    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 Subscriber

    Messages:
    2,268
    Location:
    upstate new york
    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:
    2,040
    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
     

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