Faulty Speaker Cable

Discussion in 'The Workbench' started by Gibson_83, Jan 7, 2017.

  1. charveldan

    charveldan Well-Known Member

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    [​IMG]

    Basically you want "oxygen free copper", i use Quantum speaker & instrument cables, they work well and are affordable.
    Like anything else don't get sucked into the marketing when it comes to cables.
    I will say Mogami instrument cables are top notch.
     
  2. Gibson_83

    Gibson_83 Member

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    thanks Charveldan, I've also heard on the Soldan o forum that Pete Cornish cables are top notch too, i've sent them an email for a quote.

    I'll suss out the quantum ones too :)
     
  3. GT08

    GT08 Active Member

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    Check out the wire inside a speaker Cabinet. This will give you a GOOD idea of what quality cable/wire is required....(plus a reality check!).
    Good quality connectors go without saying......
     
  4. ampmadscientist

    ampmadscientist Well-Known Member

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    UN-plated Brass Plug:
    That's bad news already.
    The brass oxidizes, the continuity is lost, and the amp blows up.
    Un-plated brass: that's idiotic. What a piece of crap.
     
  5. chuckharmonjr

    chuckharmonjr Well-Known Member

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    Ive been rolling my own for years. 16-18ga lamp cord and switchcraft ends soldered all to hell and gone.
     
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  6. chuckharmonjr

    chuckharmonjr Well-Known Member

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    Not only does that make a great speaker cable, I use white lamp cord. No way in hell to get confused in the cord bag no matter how dimly lit the stage is.
     
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  7. GT08

    GT08 Active Member

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    I do a similar thing using a coloured electrical tape around both Neutrik jacks.
    Using 'white cable' though....I do like that.
     
    Last edited: Jan 9, 2017
  8. Gibson_83

    Gibson_83 Member

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    Yeah except mine had the normal silver/nickel plug like in the other pic, I really wish I'd known more about all this stuff when I bought it, oh well live and learn.

    And the worst thing is its twice the price then the Rapco link you sent me, so I naturally at the time would have thought its a higher quality better cable. What a crock of shit.
     
    Last edited: Jan 9, 2017
  9. Gibson_83

    Gibson_83 Member

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    I've got a planet waves speaker cable I normally use as a spare (was my main till I got this "good" one), had it for over 10 years and its never given me any problems.
     
    Last edited: Jan 9, 2017
  10. Gibson_83

    Gibson_83 Member

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    took the bastard george l cable apart today, one of the pin/prod thing had disintegrated on one end which caused the cable to short out.

    The only response I got from george l was to send it to them for repairs, never again will I buy their stuff. Ordered a Pete Cornish cable which looks top notch.
     
    Last edited: Jan 10, 2017
  11. ampmadscientist

    ampmadscientist Well-Known Member

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    1. The PIN contact is UN-reliable, and will burn out. It is not designed (in any way) to carry high current.
    ALL speaker cable plugs MUST be SOLDERED. There is no exception to this.

    2. ALL speaker cable plugs MUST have PLATING. The plating MUST be high grade electrical quality metal.
    BARE metal (bare brass) corrodes and oxidizes rapidly. This will cause loss of electrical continuity, and will BURN up the output transformer!!!

    3. I have seen these "solder-less" plugs for many years.
    They are very UN-reliable, and fail frequently. These type plugs are UN-professional grade.
    There is probably NO worse type connector available. It IS the worse choice possible.
    (besides the plugs on "hot wires" speaker cables, which are also worthless)

    4. The "warrantee" does not cover amp repairs!
    Which really means: the lifetime warrantee is WORTHLESS.
     
  12. ampmadscientist

    ampmadscientist Well-Known Member

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    O2 free copper is an excellent choice. It is the oxygen which causes corrosion!
     
  13. Gibson_83

    Gibson_83 Member

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    Man I wish i'd known this a few years back before I bought this crap. I'd heard so many people rave about george l's I figured their speaker cables must be good too.

    I have very little to no knowledge about electronics, and being out of my depth I just got sucked into the hype.

    Its been a very stressful but valuable lesson to learn, the amp still works fine and I have new good quality cable on its way.


    [​IMG]

    [​IMG]
     
  14. Micky

    Micky Well-Known Member VIP Member

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    This is exactly why I build my own cables.

    That way I KNOW what components are being used, and that they are being SOLDERED reliably.

    Now I know that many people may not have the skills or resources to do this, and for those people I truly feel sorry. Unless you can unscrew the plug and inspect the workmanship, I won't use it. If it is 'press-fit' crap (like George L) I throw it away unless I can reuse the cable. Same thing for molded plugs. You cannot trust them, as you cannot inspect them for problems.

    Mogami or Belden cable, Switchcraft or Neutrik connectors. And heat-shrink tubing. Learn how to solder these yourself...
     
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  15. Gibson_83

    Gibson_83 Member

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    Yes I will learn for sure, I always was under the impression that a dedicated cable maker like george l would know what they hell they are doing!
     
  16. ampmadscientist

    ampmadscientist Well-Known Member

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    "INSULATION RESISTANCE BETWEEN CONDUCTORS IS MEASURED AT AN APPLIED VOLTAGE OF 500 VDC AND MUST EXCEED 200 MEG OHMS."

    Now, you are talking my language.
    I like it, I like it, I love it. Now that's what I call a "test!."
     
  17. Gibson_83

    Gibson_83 Member

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    Well sounds like I'm onto a much better cable then this time, even though those figures and number sound like gibberish to me!

    I wish I'd asked around before assuming a hyped up brand name cable would be the best, but atleast i'm much better informed now.

    Thanks for all your help guys, i'll be sticking to Pete Cornish cables from now on. There was only $20 difference between this and the george L piece of junk.
     
  18. Micky

    Micky Well-Known Member VIP Member

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    They are trying to make cables available to 'everyone' so that they can make the exact length they need. Problem is the connectors. They use good cable, it is just that you pay a lot extra for the convenience of making your own length with 'press-on' plugs.
     
  19. Gibson_83

    Gibson_83 Member

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    yeah the connector was the part that shat itself and caused the sound drop outs.

    When I googled george l speaker cable just before, they have a new type that has normal plugs with soldering!!

    I guess people must have complained or they had too many of the old style fail.
     
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  20. ampmadscientist

    ampmadscientist Well-Known Member

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    He's using Neutrik Plugs, and testing it seriously.
    That's a good cable, dude.
    That's what you want.
     

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