Advertisement



  1. Things you need to know about the new ‘Conversations’ PM system:

    a) DO NOT REPLY TO THE NOTIFICATION EMAIL! I get them, not the intended recipient. I get a lot of them and I do not want them! It is just a notification, log into the site and reply from there.

    b) To delete old conversations use the ‘Leave conversation’ option. This is just delete by another name.
    Dismiss Notice

Elsdon Wonfor Audio LS-25 speaker cables

Discussion in 'audio' started by Cereal Killer, Jun 28, 2017.

  1. Yomanze

    Yomanze pfm Member

    Me neither, but I have slowly adjusted to the new balance over time...
     
  2. Dark Energy

    Dark Energy pfm Member

    Re cable burn in, it's actually the dielectric that "burns in" or reaches optimum charge or whatever it is that's going on. PTFE (Teflon) demonstrates this phenomena most readily, to the point that if you leave a cable unused you need to burn it in again, same with Teflon capacitors. Same for other dielectrics just more noticeable with Teflon. If you use cables with PVC dielectrics all bets are off! Have you wondered why there are no PVC capacitors?

    While the vast majority of the cables out there are much of a muchness, there are some that offer huge performance upgrades, problem is finding them! In the 90s I remember doing some comparisons with a bunch of the best interconnects of the era, not much to choose between most of them (and I think this explains why people claim not to hear much in the way of meaningful differences) However there was one design that sounded so good that it sounded like an expensive amplifier upgrade, really jaw dropping and impossible to miss. There was another that was new to the market, with radical technology while receiving really very good reviews, but I, and everyone else who heard the comparison between these two cables hated it!
    What I found most interesting was that these comparisons were carried out with Audio Research, Krell and Mark Levinson Amplifiers. When this remarkable cable was used with a Naim NAC52 NAP135s Amplifiers the performance advantage just evaporated. I'll let you ponder why that might be. ;)
     
  3. That could explain it then, apparently every strand of whatever is inside the LS-25 has a its own coating of 'something' which has to be removed before soldering (Mark mentioned this in discussion) This is why its only available terminated, it needs burning off carefully with controlled heat and is time consuming.
     
  4. YNWOAN

    YNWOAN 100% Analogue

    The idea that the dialectic alters is a novel concept but there is absolutely no evidence to support it outside of creative hypothesis.
     
    Rockmeister likes this.
  5. Same goes for skin effect IIRC.
     
  6. Guest432

    Guest432 Guest

    Skin effect is well understood but not an issue as it does not occur at the low freqs used in hifi.

    IMHO burn in does not exist, what does happen is that over a period of time your hearing/brain is adjusting to this new presentation.
     
    Rockmeister likes this.
  7. I disagree.

    Have look at these links Colin posted on the TQB thread a while back when we were discussing his design/s http://www.pinkfishmedia.net/forum/showpost.php?p=3108936&postcount=326
     
  8. Has anyone else on PFM got these in there system/s yet?
     
  9. YNWOAN

    YNWOAN 100% Analogue

    Yup, none of those links appear to contradict the idea that skin effect is not relevant at audio frequencies.
     
  10. From the previous TQB thread:

     
  11. FireMoon

    FireMoon pfm Member

    Awaiting to hear back from them after emailing them about what I require.
     
  12. Cool!! maybe quicker to call Mark though! :)
     
  13. FireMoon

    FireMoon pfm Member

    Couldn't find a contact number for him. PM me if you have one please?
     
  14. FireMoon

    FireMoon pfm Member

    Ahh right got it... cheers
     
  15. Guest432

    Guest432 Guest

    He's wrong, physics is physics and saying that skin effect is an issue at audio frequencies is ignoring the laws of physics for nothing more than a marketing agenda. Most of those links cite usage in high power/current environments or RF transmitters, none of these apply to hifi as that is low current & low frequency.

    I am an ex Royal Signals radio engineer with 30 years experience and have come across and learnt about skin effect as it is a major factor with SHF radio transmission but of zero consequence below 50 KHZ.

    Colin is very clever but at the end of the day is selling a product and bullshit will sometimes seep into the brochures or adverts.
     
    Rockmeister likes this.
  16. So what's your take on this then?

     
  17. Guest432

    Guest432 Guest

    It's not relevant, I'll repeat it again skin effect is not an issue at audio frequencies so the rest of that is waffle.
     
  18. CJ14

    CJ14 Retired

    I am sorry but I do disagree, and I design not repair for a living, yes RF and skin effect is relevant, when I designed sonar kit at 40KHz and 100KHz your telling me the extra few Watts I got out was in my mind, mmm I then used NAFF kit. We had better tell The Royal Navy then that the kit I worked on in a design team we could just use 30A Cooker Cable because you say it is not relevant. God the money we could save, and I could have not bothered with a total of nine years at uni, and 40+ yrs of design work experience. What a waster I am.

    [​IMG]

    Do note the 60Hz - 1KHz

    Another good read and not crap is here.

    https://en.wikipedia.org/wiki/Skin_effect

    Enjoy and read well.
     
  19. I'll try and understand some of that ( no promises though :))
     

Share This Page





Advertisement


  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice