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Analog vs. Digital interconnects

Discussion in 'Archived Threads 2001-2004' started by Bill W., Jan 4, 2003.

  1. Bill W.

    Bill W. Stunt Coordinator

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    Is there a difference in Analog and Digital interconnects?

    I'm about to build some cables using Mike's instructions and wondered if there was any difference.

    I know that the big companies, ie. Monster, Audioquest, etc. all advertise a "Digital" interconnect. Is there really a difference? What is the difference between the big name companies various levels of interconnect cables?

    Thanks, Bill
     
  2. Brett DiMichele

    Brett DiMichele Producer

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    There most certainly is a difference between the cables
    labeled as Data cables and those labled as analog cables.

    You can not use a digital cable on an anlalog connction
    because the digital cable is designed to filter out anything
    other than 1's and 0's where the analog cable will pass
    anything from 1 to infinity and A through Z too..

    Am I being sarcastic? Yes.. You get my drift though..

    Analog or Digital it's a scam.. Same cables...
     
  3. Javier_Huerta

    Javier_Huerta Supporting Actor

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    What about impedance mismatch? I think digital cables should be 75 ohms. I have succesfully used audio cables in digital applications, though. I have even connected a 75 ohm SPDIF coax to a 100 ohm XLR digital input with no impedance mismatch issues.

    OTOH, I agree with you Brett: many esoteric cables seem to me to be a huge scam.
     
  4. Brett DiMichele

    Brett DiMichele Producer

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    Well as far as 75Ohm Coaxials are concerned. Any company
    marketing a good cable will be using a good true 75 Ohm
    Coax, the bulk cable is available from numerous companies
    like Canare, Belden and others and it's not expensive in
    the least.
     
  5. Patrick Sun

    Patrick Sun Studio Mogul

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    Shielded cables plays a slightly bigger part in the efficacy of a cable in transmitting a digital bitstream between a DVD player's digital output and the processor's input. 75 ohm is the preferred cable impedance for interconnects for transmitting digital bitstreams.

    "Digital" is a marketing buzzword, just like "HDTV antennas" which are the same as normal VHF/UHF OTA antennas.
     
  6. Mark Fitzsimmons

    Mark Fitzsimmons Supporting Actor

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    The only "digital only" cables would be the optical toslink.
     
  7. Dan Hine

    Dan Hine Screenwriter

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  8. Mark Fitzsimmons

    Mark Fitzsimmons Supporting Actor

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    Stand corrected.
     
  9. Bill W.

    Bill W. Stunt Coordinator

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    Thanks guys, that was what I believed, but stopped through a high end shop and noticed all the "Digital" hype and let myself be distracted.

    Bill
     
  10. BruceD

    BruceD Screenwriter

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    The simple answer is to use 75 Ohm IC cables labeled "AV" or "Video" or "Digital" for all digital and analog IC duties, excepting the possible use of Toslink for some digital IC duties.

    ICs labeled as "Audio" can actually be of the 50 Ohm variety and can cause problems, like signal reflections, when used for digital ICs.
     
  11. Bill W.

    Bill W. Stunt Coordinator

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    Thanks, Bruce

    Bill
     
  12. Pete Mazz

    Pete Mazz Supporting Actor

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    And make sure they say "Titanium" on the package somewhere. Then you know they're better! [​IMG]
    Pete
     
  13. Brett DiMichele

    Brett DiMichele Producer

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    Titanium rules!
    [​IMG]
     
  14. Michael Hartwig

    Michael Hartwig Stunt Coordinator

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    "Titanium rules!"
    Especially if you hit the ball in the sweet spot.
     
  15. Bill W.

    Bill W. Stunt Coordinator

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    [​IMG] But of course thats only if you can hit the middle of the club face.
    Bill[​IMG]
     

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