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108 MHz DAC vs. 54 MHz DAC

Discussion in 'Blu-ray & DVD Players & Recorders' started by stephen19, Nov 20, 2004.

  1. stephen19

    stephen19
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    Hi, I was researching new players and some state they have a 108MHz, 12-bit DAC, and older models only have a 54MHz DAC. Can you dee the difference or are these figures purely for marketing purposes? Thanks.
     
  2. vonhosen

    vonhosen
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    John Dawson from Arcam discussed this before

    Here is what he said

     
  3. nwgarratt

    nwgarratt
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    I asked the same question myself a while ago. I was split between getting a Pioneer DV470 or a Sony NS585. The Pioneer has a 108Mhz like the DV575 and the Sony has a 54Mhz.

    I tried a DV575 and was very impressed. However I went for the Sony as I prefer the build quality of the Sony and it still creates a excellent picture on my projector. I didn't notice much difference using RGB scart on the TV between the two.

    In theory the 108mhz should be sample the information twice as much and create a better picture. However, other factors can take affect the result.

    If the Sony wasn't an option then I would still have been very happy with the Pioneer.
     
  4. stephen19

    stephen19
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    Thanks. The man from Arcam seems to suggest that you only need 27MHz, so 54 is already twice what you need, so presumably 108 makes no real difference. I was thinking twice as fast isn't necessarily twice as good; think of the controversy about 50hz vs. 100hz tvs!
     

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