Sony 4ES power rating

Discussion in 'Archived Threads 2001-2004' started by RichardMA, Dec 14, 2002.

  1. RichardMA

    RichardMA Second Unit

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    So, according to Sound and Vision and Sony, the power
    rating on this receiver is only something like
    120watts, then six channels of around 20 watts each.
    This is no surprise and I think other mfgs' should come
    out and admit their receivers only produce a fraction of
    their so called WPC when all channels are driven.
    You can't violate the laws of physics and 200-300lb receivers (the weight TRUE power amps would be to produce
    a clean 100+ wpc) are not in the cards.
     
  2. Craig_Kg

    Craig_Kg Supporting Actor

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    Where do you get the 20W/Ch with 6 channels driven from? I doubt the rail voltages would sag that much.
     
  3. Adam Barratt

    Adam Barratt Cinematographer

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    There are certainly receivers capable of outputting 100 Watts or more, all channels driven, and none weigh 300lbs.

    Adam
     
  4. Seth_L

    Seth_L Screenwriter

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  5. RichardMA

    RichardMA Second Unit

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    The engineering spec is for full power from one
    channel and 1/8th from the rest. According to
    Sony.
     
  6. Seth_L

    Seth_L Screenwriter

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    That may be Richard, but the DA3ES was tested to put out it's rated power all channels driven.

    Seth
     
  7. Ted Ross

    Ted Ross Second Unit

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    see this previous post
    As I mentioned I remember the Hometheatermag's review of the da3es so that makes the S&V decision to not post the all channels driven results very confusing-if it can perform like the da3es then sony shouldn't be ashamed of the test results
     
  8. Craig_Kg

    Craig_Kg Supporting Actor

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  9. Wayne Ernst

    Wayne Ernst Cinematographer

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  10. alan_dana

    alan_dana Agent

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    My read of the S&V review is that the DA4ES has a fairly respectable amp for it's price class. I wish they had gone ahead and given it at least a 5 channel test. The measurements into 1 and 2 channels were quiet good. Into 8 ohms it produced 171W into 1 channel and 140W into 2 channels.

    This is much better than several other 100wpc type multichannel receivers for 1 or 2 channels.

    It also had excellent noise measurements in surround sound mode.

    While I don't doubt that it would fall short of producing 110 watts into all 7 channels simultaneously, there is absolutely no reason to believe it is limited to a maximum of 20 watts in all other channels when one channel is producing 110.

    Alan
     
  11. Ted Ross

    Ted Ross Second Unit

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    Why would S&V not post the test results? The "all channels driven" results must have been really low [​IMG]
     
  12. Rick_FL

    Rick_FL Stunt Coordinator

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    here's a quote from the notes for the review in S&V
     
  13. Ted Ross

    Ted Ross Second Unit

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    sony probably told them they didn't want it published


    Probably because the results were dismal. About a year ago S&V published the results of the Sony db1070 & it had a dismal showing(31w x 6), so I dont believe the "we cant do the all channels test" excuse. Dont get me wrong, Im not a Sony basher(I used to own the da5es & loved it)-just surprised at S&V not publishing the results(inquiring minds want to know!).
     
  14. Craig_Kg

    Craig_Kg Supporting Actor

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    I've seen other tests (on the DB1070) that makes that S&V test result questionable.

    If Sony did ask S&V not to do an all channel test, then they have shot themselves in the foot with all the conjecture this is causing.
     
  15. Yogi

    Yogi Screenwriter

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    I remember S&V once tested three sub 1K receivers, a Denon, Pio and Sony. They were rated at 90x6 for the Denon, 100x6 for the Pio and I think it was 100x6 for the Sony too. I remember that the Denon and the Pio tested out the same at around 60Wx6 but the Sony tested out at some low number like 30Wx6. I know S&V tests at 1Khz at so the real world output for the full spectrum would be even lower. I can't find the article in their archives. Probably someone will be able to dig up the article and post it here.

    My 2 cents.
     
  16. Juan_R

    Juan_R Supporting Actor

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    Yogi,

    that test was done with a non ES receiver.

    Ted,

    I also use to own the 5ES, what receiver do you have now?
     
  17. Ted Ross

    Ted Ross Second Unit

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    Juan, I bought a Yamaha RX-Z1
     
  18. Craig_Kg

    Craig_Kg Supporting Actor

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  19. Yogi

    Yogi Screenwriter

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  20. AaronBatiuk

    AaronBatiuk Second Unit

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