Comparing two units of the same model: Break-in aside, shouldn't they sound the same?

Discussion in 'Archived Threads 2001-2004' started by KeithH, Jul 28, 2002.

  1. KeithH

    KeithH Lead Actor

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    In reading a review of the Sony DVP-NS500V DVD/SACD player in the June/July issue of the abso!ute sound, I found the following statement and related footnote interesting:

     
  2. John Royster

    John Royster Screenwriter

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  3. KeithH

    KeithH Lead Actor

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    John, yeah, that's what I was wondering. As I had said, I had always thought that manufacturers of audio and video gear stuck with the same parts, but looking at it as a business with margins and deadlines to meet, I could see certain parts being changed on the fly so long as the parts were up to spec. I guess if you consider a component that is in production for a year, suppliers and types of certain parts could very well change. I just wonder if it actually happens.
     
  4. Joe Cole

    Joe Cole Second Unit

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    I would think such swapping of parts in music electronics would not be good for sales. I'd hate to think that Sony had played loose with the parts in my XA777ES SACD player, especially at its price point.
    If the parts do not effect the quality of sound I say it does not matter but if one set of components is brighter than another it would not be a good thing.[​IMG]
     
  5. KeithH

    KeithH Lead Actor

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    Joe, I agree. I would also tend to think that manufacturers would be more stringent with the parts list on higher-end components. The quantities produced of these components is far less than that of budget components, as is the demand, so I would think that the manufacturer could better absorb a delay in production of a higher-end component while waiting for the exact right part. However, whether we are talking about the $300 Sony DVP-NS500V or the $3000 Sony SCD-XA777ES, we are talking about Sony, and I'm not sure whether Sony makes a distinction. Simply put, I am willing to bet that Classe, Cary, Accuphase, etc. are more strict with its parts lists than is Sony.
     
  6. Matthew Anker

    Matthew Anker Stunt Coordinator

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    Well, I've seen three different versions of the CE775.

    One rare version has the entire transpost assembly (what the disc tray rides on) made out of white plastic, while most of the players are made of black plastic.

    I have seen 3 or 4 different brands of coupling capacitors used on the rear, sub, and center output stages. They've used Nichicon, Jamicon, Rubicon, and Elna.

    The earlier versions of the player have Burr Brown labeled DACs, while later versions have a Sony "CXD number" DAC (still produced by BB of course).

    So I expect you could hear a difference between two players of the same model, especially if the construction dates are farther apart.
     
  7. KeithH

    KeithH Lead Actor

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    Matthew, very interesting. Thanks for sharing your experiences with the 'CE775. I imagine that since differences occur with the 'CE775, similar differences occur with the 'NS500V. This is very enlightening. As I have said, I can see how a manufacturer would substitute parts that are all "within spec.", but it is disconcerting. I wonder if the manufacturers think about or even care how parts substitutions might affect performance. As we all know, specs. don't tell the story regarding sound quality.
     
  8. Matthew Anker

    Matthew Anker Stunt Coordinator

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    The parts are within specifications, and at least their attention to the stereo channels has remained constant. I don't think the difference in part suppliers will make that much of a difference.
     
  9. KeithH

    KeithH Lead Actor

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    Matt, O.K. You would certainly know better than I. There were holes all through the abso!ute sound reviewer's analysis of the two 'NS500V players. Still, the possibility of manufacturers changing parts is a bit bothersome. In the end, there is nothing one can do about it, and either you like the player or you don't. If I bought a player and didn't like it, I wouldn't exchange it for another thinking that a possible difference in parts would make a difference in the sound quality.
     

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