United Kingdom. EWA designs for cables and amplifiers, by Colin Wonfor.

All text and images copyright 2019 ABCaudio & Elsdon and Wonfor Audio

  • EWA LS-25 Loudspeaker Jump Links


    EWA LS-25 Loudspeaker jump links


    LS-25 is Colin Wonfor’s ultimate cable design to date. It uses the same materials as the other LS cables, though in different amounts and in a different geometry. Colin (and we at ABCaudio) believes LS-25 to be technically the finest loudspeaker cable available today.


    Many listeners will find LS-25 to be their final destination Loudspeaker cable, as it blends and marries the presentation of your amplification and loudspeakers without any external interference. No common mode noise, ringing, nor phase distortion. The closest thing to a direct connection between the loudspeaker drivers and your amplifier, they will function as a single entity.


    LS-25 is intended only for use in well balanced audio systems, and should not be utilized in an attempt to 'tune' the sound of a system. It is a neutral cable, utterly transparent, therefore unsuited to masking certain sonic attributes, or projecting others. You should be happy with the balance of your system before using LS-25, as it is a reference product and will project much more of what you already have into your listening space.


    A listener can expect a lowered noise floor, wider and deeper sound-staging, and a timbral vivacity that should take the breath away. Note the lightning fast bass with a real leading edge, rendered with accuracy and scale. The mid-range is similarly huge, lush and detail laden, and the treble extended and powerful. This seamless range presents itself in the largest of stereo images, where every sound hangs in its correct shape at its own point in space. This soundstage remains solid at all volume levels, while dynamics are capable of causing alarm!


    LS-25 can seem a bit much at first, which is partly why we allow a 30 day return period. It will accentuate all the existing properties of your system, whether good or bad. Some systems will shine with LS-25, but it won’t suit those which are not already exemplary, by drawing attention to these unrefined areas.

    • Specification

      All measurements are for 1 metre.


      Capacitance 19 pf
      Common mode inductance 16 uH
      Single conductor inductance  6 uH
      Single conductor resistance <29 mOhms
      Balance inductance (effect on the amp) 1.3 uH

      Open circuit resonance

      32 MHz into no load
      Frequency response DC to 1 MHz into 8 Ohms