Speaker Cable Direction?

Discussion in 'Audio Hardware' started by notec, Oct 1, 2009.

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  1. jorgeluiz

    jorgeluiz Forum Resident

    why i don't quoted your post before?!? :thumbsup: :laugh:
     
  2. Mark W.

    Mark W. Forum Resident

    Location:
    Silverton, OR
    My interconnects are all directional BECAUSE they have a shield connected at only one end and this end should come from the source of the signal.

    Same with Speaker cables if they have a single ended shield that end it's connected to should be at the amp.

    simple as that
     
  3. Dart56

    Dart56 Forum Resident

    Location:
    Oshawa, ON
    "I'ts not nit-picking, it's being accurate. By the way, a lot of cable mfrs will tell you the best insulation is air; most of the sound quality problems from wires come from the plastic insulation acting as dielectric."


    That makes absolutely no sense. Insulation causing problems because it acts as a dielectric...that's the whole point of insulation! And last I looked at my table of dielectric constants, air is a dielectric as well. You need some kind of dielectric to prevent from shorting when wires touch (air has a nasty habbit of not staying in between two pieces of wire!).

    Brad
     
  4. Mike from NYC

    Mike from NYC Senior Member

    Location:
    Surprise, AZ
    :shrug:

    My wires didn't come with directions or a map. Help me I'm lost :eek:
     
  5. McGruder

    McGruder Eternal Musicphile

    Location:
    Maryland
    "air" dielectric refers to something that approximates no dielectric, such as cotton or teflon tubing that doesn't hug the wire. This has proven to be a very important design feature in my experience with cables. Problems with dielectric smearing signals is also related to the improvement in sound associated with "breaking in" cables. Air dielectric designs typically do not improve much with "break-in".
     
  6. McGruder

    McGruder Eternal Musicphile

    Location:
    Maryland
    +2. You can also have air dielectric (teflon tubes) surrounded by a shield.
     
  7. KT88

    KT88 Senior Member

    ...and the shield should only be connected at one end on a quasi-balanced cable design. These types are directional. A simple, two conductor coax or a twin lead speaker wire is not directional. In some situations, it can even be beneficial to lift one end of a balanced cable connection. So some cables, in some applications are best fitted in one direction only. There is never a "one answer covers all situations".
    -Bill
     
  8. 3db

    3db New Member

    Location:
    Ontario Canada
    That is freakne halarious. I can't beleive the lengths companies go to shovel out the sh?t to get people to buy their stuff. thx for the laugh. :laugh:
     
  9. reb

    reb Money Beats Soul

    Location:
    Long Island
    Yes, agreed on that part.
     
  10. Puma Cat

    Puma Cat Forum Resident

    Location:
    East Bay, CA
    The point of insulation is to prevent electrical short circuits. The best dielectric with respect to sound quality is a vacuum, followed by air, then cotton.
     
  11. Puma Cat

    Puma Cat Forum Resident

    Location:
    East Bay, CA
    BTW, not only does the rubber, plastic, expanded foam, etc serving as insulation cause problems with smearing of sound because they act as a dielectric, but the plastic that those IEC connectors that everyone is so fond of for use with ultra-trick power cords also cause sound quality problems because of the plastic (dielectric) they are made of. Best sound quality is when the power wire is hard-wired to the component.

    BTW, gold terminations also mess up the sound....eutectic brass, tin, and silver all sound better. Also, connecting bare wire sounds better than spades, banana plugs, etc.
     
  12. Puma Cat

    Puma Cat Forum Resident

    Location:
    East Bay, CA
    Absolutely correct.
     
  13. Puma Cat

    Puma Cat Forum Resident

    Location:
    East Bay, CA
    +3; this is the basis for the TARA and Audioquest designs, for example.
     
  14. P2CH

    P2CH Well-Known Member

    I learned that electrons flow from negative to positive, and the earth's magnetic flux flows North to South.

    Wire should therefore follow the same principle, right? Maybe turn the amp towards the South too?

    I'm just kidding. I felt the need to be a goof ball. Sorry.
     
  15. e630940

    e630940 Well-Known Member

    Location:
    Canada
    Electrons should oscillate back and forth through each conductor - that is how the whole system works.

    I raised this directionality question over at the NAIM forum and somebody posted this quotation -apparently from the late (great) Julian Vereker (NAIM Audio's founder)
    I guess what ought to be done is to have the left and right channels identically wired to preserve symmetry.
    This is a cut & paste
    -----------
    "Date: April 17, 1999 05:33 AM
    Author: julian vereker
    Subject: direction

    Here follows a cut & paste from an earlier post of mine. "I can't tell
    you why cables sound different one way round to the other, but I do
    know when the 'directionality' happens in manufacture.

    It doesn't seem to matter how the bundle (of copper) is drawn, single
    direction or mixed direction, but as soon as the insulation is
    extruded onto the bundle, the directionality is established. This
    means that one can mark the insulation and it will always be the right
    way round.

    I suspect that the hot plastic insulation anneals the copper in some
    way, and this affects the crystaline structure.

    But all our attempts, over many years, have failed to find any
    measurement to show the directionality or indeed whether one cable
    will sound better than another (other than the obvious - resistance,
    capacitance and inductance)

    Maybe someone out there knows?"

    I am not sure about being an ex Physicist, I would have thought 'Once
    a Physicist always a Physicist'. However one thing that is often
    missed by the 'profesionals' is that audio electronics design is the
    most difficult discipline of all - one has to design for 10 octaves
    and 130dB at the same time - a huge envelope, and much larger than any
    other area of electronics endeavor.

    julian"

    :confused:
     
  16. Dart56

    Dart56 Forum Resident

    Location:
    Oshawa, ON
  17. Feisal K

    Feisal K Forum Resident

    Location:
    Malaysia
    maybe he didn't have access to an electron microscope at the time... :laugh:
     
  18. "Forget uni-directional speaker wire, the signal to the speaker is alternating current and as such "vibrates" through the wire rather than travel linearly along it. If a speaker wire has a directional arrow on it, ask the salesman "why" and "how" it works."

    http://www.eastwoodhifi.com.au/tweaks.htm
     
  19. e630940

    e630940 Well-Known Member

    Location:
    Canada
    probably had his eye on a brand naim;)
     
  20. bdiament

    bdiament Producer, Engineer, Soundkeeper

    Location:
    New York
    Hi notec,

    "Does direction matter?"

    First I'd ask if you hear differences in the sound of different cables?
    Then I'd ask if you hear a difference in a given cable between the time it is brand new and after it has been playing music for say, 50 hours?

    If you answer yes to these questions, my suggestion is this:
    Install and burn in your favorite cable. When it has burned in (or if it already has), reverse its direction. Do you hear a difference?

    This being the Internet, it is not difficult to find support (factual or otherwise) for any side of any particular argument. Ultimately, none of this matters because you will either hear a difference or you won't. And in this case, listening to your system in your room, you are the only person that counts.

    I'd be interested in your experience if you try this.

    Best regards,
    Barry
    www.soundkeeperrecordings.com
    www.barrydiamentaudio.com
     
  21. Dansk

    Dansk rational romantic mystic cynical idealist

    Location:
    Ontario, Canada
    Barry, I'd be very interested in seeing support (preferably factual) for the belief that cables are directional.
     
  22. rpd

    rpd Senior Member

    Location:
    Nashville
    There isn't any...
     
  23. Gary

    Gary Nauga Gort! Staff

    Location:
    Toronto
    Yes and yes. :)

    But one end has a banana plug and the other is a pain to attach to the amp because it's a simple screw. And a thick, stranded wire.

    However, I have the writing going from source (amp) to speaker so I presume that I'd be ok..... oh, heck, if I remember in a month, I might try it anyway. What the hey! But I'm too busy these days....
     
  24. Feisal K

    Feisal K Forum Resident

    Location:
    Malaysia
    wait... if electricity is non directional, why are we being charged by the power company?

    or worse, if all they do is take our Dark and charge us for it...
     
  25. Dansk

    Dansk rational romantic mystic cynical idealist

    Location:
    Ontario, Canada
    :laugh:


    It's true though, you're not actually getting any electrons from your power company. They're just jiggling them around a bit for you.
     
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