Simple question on cabe types?

Discussion in 'Cables & Switches' started by radical1, Jan 4, 2007.

  1. radical1

    radical1
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    Hi

    I want to understand cables better, i have read the FAQ section but its really high tech and i just need to know a few basics....

    I use scart to connect mainly between my cable box and tv and dvd etc....

    Ive never used S Video... am i right in saying that svideo needs also a red and white audio phono type cable to go with it? and is there any big difference in quality svideo over scart?

    I hear people taliking on these forums a lot about component and composite?? What are they?

    And what is RGB?

    Much appreciated!!:lease: :lesson:
     
  2. Brogan

    Brogan
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    Your simple questions actually require quite complex answers.
    I would suggest reading this as it will tell you everything you need to know.
    http://www.avforums.com/forums/showthread.php?t=106899

    In a nutshell though, SCART is a physical medium not a signal type.
    SCART can carry various different signals including RGB and Video.

    An S-Video cable only carries a video signal so you will need separate audio leads.

    As far as picture quality goes, this is a general heirarchy.

    HDMI
    Component
    RGB
    S-Video
    Video
    Composite

    Some people prefer component instead of HDMI for PQ and vice versa.
    Some people prefer S-Video instead of RGB for PQ and vice versa.
    It depends on the source device, the display, settings in both and personal preference.

    A component signal is transmitted using a set of 3 leads carrying the separate components (hence the name) of the video signal.
    These leads are usually coloured Red, Green and Blue but they are not to be confused with the RGB signal listed above.

    Composite is the lowest quality signal and is usually transmitted using a single yellow RCA cable.
    This type of connection should be avoided wherever possible.

    For your set up, you can use SCART or S-Video.
    If you use SCART, you then have the option of using a standard Video signal or RGB if your source and display support it.
    For your case, I would try following:
    1. RGB over SCART
    2. S-Video
    3. Video over SCART

    See which you prefer.
    It should be either 1 or 2.

    S-Video is really useful for long runs.
    For example, if you have a 15 metre run from DVD/Sky to projector, you will get better results with 15 metre S-Video cable than you will with a 15 metre SCART cable.
    Not to mention it will be a hell of a lot cheaper (less than £25 for a Van Damme S-Video cable).
     
  3. radical1

    radical1
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    You know what Brogan, that is so bloody helpful!! Thankyou for takin the time to explain, it really is appreciated! Ive only ever used scart but since buying my 40"LCD im having to broaden my horizon and knowledge and know how and this forum is awesome, and people like you and many others on here are fantastic!

    Im getting an upscaler DVD player soon, im just busy reading reviews and researching etc before i jump in, i guess im going to be going for a component (now i know what it is!) ort HDMI connection and play around with them...

    Im also getting a Telewest TV Drive (HD) in a couple of weeks which is gonna fit in via HDMI, and as ive only got one HDMI on my TV i guess component could be a HQ answer to conect a upscaler DVD eh....

    I have bought a 4way HDMI slpitter box so im ready but am a little worried that maybe some quality may be lost if going through a splitter box but i guess its all trial and error eh! :)

    Anyways, i was really baffled about the svid and component and composite so now i understand it a little more, so thankyou....

    Best Wishes...
     
  4. Brogan

    Brogan
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    Glad to help.

    As far as quality is concerned when using splitters, etc., I use a 3 in, 2 out HDMI switch and suffer no loss of quality becuase of it.
    In fact, according to the manufacturer, the switch actually helps to reduce degradation of the signal over longer lengths of cable so is in theory better than using just a cable.
    Over lengths of less than 10 metres though, you shouldn't really have any problems with HDMI or component.
     
  5. radical1

    radical1
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    i wont ever be going further than 1.5metres, but again thats good to know!!

    Just gotta go and find a cheapo DVD upsclaer now!! :D
     
  6. Brogan

    Brogan
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    Don't make it too cheap as in this game, source is everything.
    Besides, it will only mean you upgrading sooner than you think ;)
     
  7. pemberto

    pemberto
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    If you are looking to upgrade your cables some AV retailers have demo cables that you can try in your own environment. This approach allows you to ty different cable types and costs.

    Brogan, before you jump on my comments, following our exchange last night with the cost of cables. I am only saying that you should try and audition a few different cables before you make your final purchase.
     
  8. Brogan

    Brogan
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    I'm not going to dismiss your comments at all.

    It's up to each individual to decide how much they want to spend on cables and whether they can see or hear improvements with more expensive ones.
    Personally I can't justify the additional expense as I am unable to see or hear any difference over basic, well made cables.
     
  9. pemberto

    pemberto
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    Brogan, I should have added a smilie at the end of my comments. Not having a dig. :thumbsup:
     
  10. Brogan

    Brogan
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    No worries, I didn't think you were. :)
     

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