1. Join Now

    AVForums.com uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Longer cables

Discussion in 'Cables & Switches' started by jonathan, Feb 2, 2003.

  1. jonathan

    jonathan
    Member

    Joined:
    Feb 8, 2002
    Messages:
    155
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    19
    Location:
    Kent
    Ratings:
    +0
    Is there any serious signal degradation on 10m runs of:
    i) Coaxial
    ii) Optical (Toslink)
    iii) Stereo analogue phono
    iv) Dedicated sub cable

    Also any recommendations of brands/suppliers that specialise in longer cabling?
    Thanks
     
  2. alexs2

    alexs2
    Well-known Member

    Joined:
    Nov 13, 2002
    Messages:
    13,896
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    136
    Ratings:
    +1,674
    Taking these in order:

    1.Coaxial....you should find relatively little degradation using good quality cable,with similar quality terminations fitted(just remember how long your satellite coax cable is).
    if you're using this in the context of a good quality stereo/AV system,use runs as short as possible,and with the emphasis on good quality.
    I use XLO digital cables in my system.

    2.Optical...you will find here that quality is likely to be degraded with increasing length,unless the optical properties of the cable are very good indeed.
    Also,jitter levels tend to be higher via optical connections,and again this may be audible.
    I dont know of any manufacturers producing 10m optical cables.

    3.Stereo analogue phono....You will find certainly with single ended or unscreened cables that the potential for unwanted noise interfering with your low level signals can be increased by length of cable.
    Use good quality cables with high interference rejection and you should be fine....I use 5m runs of Kimber to 2 sets of power amps with no problems...www.russandrews.com

    4.Dedicated sub cable.....most sub manufacturers,and certainly REL supply 10m lengths to order if not as standard.
    Frankly,you're unlikely to hear much degradation of sound at these frequencies,although interference can raise its head with long runs laid near mains cables etc.

    Hope this helps!
     
  3. jonathan

    jonathan
    Member

    Joined:
    Feb 8, 2002
    Messages:
    155
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    19
    Location:
    Kent
    Ratings:
    +0
    The visual side of my system (TV, newly acquired Sky+, DVD, & PS2) is on the opposite side to the audio (Amps, Processor, Sources). What would be your suggestion for connecting the Skybox & the PS2 to the hi-fi? Optical or phonos? I reckon I could get by with a 8.5m at a push, but that would be the absolute shortest run I could possibly manage. The DVD is Coaxial so that shouldn't be a problem right?
    Thanks for your reply
    Jonathan
     
  4. alexs2

    alexs2
    Well-known Member

    Joined:
    Nov 13, 2002
    Messages:
    13,896
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    136
    Ratings:
    +1,674
    I think that you will have some difficulty in finding a good quality 10m optical lead(and also bear in mind it's relative fragility over long runs),so I would go with phono connections from the PS2 certainly.....the Sky+ is a different matter in view of it's digital output,with DD and possibly dts enabled broadcasting.

    The DVD won't be a problem,but use a decent quality cable.
     
  5. Nic Rhodes

    Nic Rhodes
    Well-known Member

    Joined:
    Mar 23, 2001
    Messages:
    17,133
    Products Owned:
    0
    Products Wanted:
    1
    Trophy Points:
    133
    Location:
    Cumbria
    Ratings:
    +1,277
    I would just add this to alexs2 posts which give you good guidance. It is more down to the driver feeding the cable than the cable itself whether you can drive these long lengths. Good equipment will have NO problem with just 10m, hell good equipment will drive 30m with no problem in analogue. Digital a little different but 10m no problems.
     
  6. alexs2

    alexs2
    Well-known Member

    Joined:
    Nov 13, 2002
    Messages:
    13,896
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    136
    Ratings:
    +1,674
    Very good point,Beekeeper,and one which I completely forgot at the time....I would add that a lot of CD players,even some rather expensive ones,use op-amps for the output stages which arent up to the job of driving long cable runs.
     

Share This Page

Loading...