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Coaxial/female RCA, the differance ?.

Discussion in 'Cables & Switches' started by number 8, Mar 7, 2005.

  1. number 8

    number 8
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    Hi, I've got a soundcard that, according to the manual, has a set of female RCA jacks for analog input and a set of Coaxial S/PDIF inputs that receives a sterio signal from a digital source. Thing is I can't see any differance between them and they both seem to fit the same jacks, what is the diferance and do I need to use diferante cables with diferante jacks for each of these connections ?.
    Thanks,
    Number 8. :confused:
     
  2. MarkE19

    MarkE19
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    Analogue audio RCA leads are 50ohm
    Digital coax leads are 75ohm

    Both cables will work with each input, but to get the best quality you should use the correct cable for the job.

    Mark.
     
  3. number 8

    number 8
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    No way ?!. How will I know what ohm my cables are ???.
     
  4. Peridot

    Peridot
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    The analogue connection needs a cable with a pair of RCA connectors each end. The digital connection is a cable with a single RCA connector each end.

    Buy a cable described as a 'stereo interconnect' for the analogue or a 'digital co-ax interconnect' for the SPDIF and you'll be fine.

    What do you intend to connect to the soundcard?

    _______________
    Dermot
     
  5. Reiner

    Reiner
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    It's often written on the packaging, at least for the "digital" cables. Often you can also see it from the color of the connectors:

    white/red - analog audio L/R
    orange - digital coax
    yellow - composite video
    red/green/blue - component (YUV)
    black - subwoofer out

    Of course this does not always apply and depends on the make/model of the equipment you are using, so it's more of a guideline.

    BTW: Proper composite video cables (those with the yellow RCA/phono connector) are also 75 Ohm and can be used as "digital coax".

    A set of coaxial inputs as in several coaxial inputs or are they supposed to work together? If it's the latter it would get me worried.
     

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