A-S2000 Volume & Burn In Questions

Discussion in 'Yamaha' started by LutherG1, Apr 4, 2018.

  1. LutherG1

    LutherG1 AK Subscriber Subscriber

    Messages:
    221
    Location:
    Cincinnati
    Just acquired - 2 Q's -

    * Noticing that amp gains substantive volume 1030 -1100 but 900 am even 930 volume very low and music no body. Can any other owners comment? Is this an aspect of amp it problem flag?

    *Amp I am told has low hours. Does break in matter? If so how many hours and how does sound change?
     

     

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  2. robgmn

    robgmn Super Member

    Messages:
    4,296
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    Twin Ports, MN
    Maybe you're hearing what they've tried over the years to solve with a loudness button?
    (i.e. at low volumes, you need to boost low and high frequencies to give the music "oomph")
     
  3. LutherG1

    LutherG1 AK Subscriber Subscriber

    Messages:
    221
    Location:
    Cincinnati
    Yes and no. No in that many vintage amps with this power - 90 wpc - have much more volume at 9 am. Direct examples I know are CR 1020 70 or so wpc, CR 2020 105 or so wpc and Sansui 8080. I never use loudness on Sansui even at 830 am. On the others I just keep variable loudness flat. Yes in that the addition of variable loudness vs. tone controls only would have been very welcome on the a-s2000. That said it sounds great. It just needs to get to maybe 10 am to begin to sound good and 11-1130 to kick. I do not notice same with vintage Yamaha - surprising because one calling card on newer Yamaha is that they harken back to vintage. But I am wondering per question if other owners of these amps find same phenomenon.
     
  4. OMGCat!

    OMGCat! AK Subscriber Subscriber

    Messages:
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    Location:
    San Diego, CA
    I'm wondering if it's due to the nature of the volume attenuator where they give you more travel at lower volume and then it ramps up quickly as it goes up. On all of my vintage type gear it's pretty darn loud by 9 on the dial if running with modern sources due to how hot the output on things have become. I don't know why it would sound thin though.
     
  5. LutherG1

    LutherG1 AK Subscriber Subscriber

    Messages:
    221
    Location:
    Cincinnati
    I truly suspect that it IS just the character if volume attenuator. I am just wondering if anybody else who has a-s2000 can confirm. I like the amp allot. It is by no means thin. It images well, has great noise floor and has clean present bass. But I wonder if burn in warms signature more or further deepens the already very good clean bass. Also wondering if any tweaks do - isolation, better power cord, etc.
     
  6. TudorTurtle

    TudorTurtle Well-Known Member

    Messages:
    582
    Location:
    Upstate and Downstate NY
    I have that amp, and yes, the lower end of the dial is not very loud. I like it, as low level listening volume can be adjusted to exactly the right place. Used mostly on weekend mornings listening to news before the tribe is awake. :)
    I have rarely moved volume past 12:00, so your speakers may draw more power than mine.
    No change in sound from this amp from start-up to now.
     
  7. LutherG1

    LutherG1 AK Subscriber Subscriber

    Messages:
    221
    Location:
    Cincinnati
    I have noticed that 1030 is about right for fairly loud listening. And yes - 1200 would be overkill. It's just that 900 is pretty low unlike some other 90 wpc 2 channel amp. I have just accepted this as a characteristic of amp.
     

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