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

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

  • EWA LS-5 Loudspeaker Cable


    Colin Wonfor designed the EWA cable system from scratch, rather than simply purchase off the reel wire from wholesalers to be re-packaged and marketed. His design goals include (but are not limited to) eliminating common mode noise on the cable, suppressing all phase distortion, and preventing ringing at any frequency. To achieve this he utilized raw wires not usually found in audio cable, and many of the dielectric and insulation materials are his own design and composition. The details of the geometry in the EWA cable system is also quite unique.


    LS-5 demonstrates what the EWA cable system is about. Using a comparatively minimal amount of materials, LS-5 is a compact and highly capable speaker cable which rewards the listener with full compliance with the EWA design goals. Notice especially the excellent stereo imaging abilities within the widest of soundstages, stable at all frequencies and volumes. This is in part due to exemplary behavior regarding signal phase.


    LS-5 is a particularly sound choice for bookshelf type monitor loudspeakers, from which the listener can expect fine textural detail and vivid timbres. LS-5 is capable of truly extraordinary performance at its price point.

    • Specification

      Measurements of LS-5 Loudspeaker cable - 1 metre:


      Capacitance 30 pF 
      Common mode inductance  1 uH
      Single conductor inductance 0.8 uH
      Single conductor resistance 40 mOhms
      Balance inductance (effect on the amp) <1 uH
      Open circuit resonance 10 MHz into no load
      Frequency response DC to 1 MHz into 8 Ohms


    • Reviews