LS-40 Reference Loudspeaker Cables
  • LS-40 Reference Loudspeaker Cables


    Building on the unremitting performance of LS-25, EWA LS-40 gives more of the same in the same form factor. Almost double the conductor cores and a stronger common mode inductance than LS-25 means the music jumps from the soundstage with extraordinary vigour. Timbres and colours are vividly manifest, and your soundstage will hang between the speakers in utter cohesion and stability.


    For us, EWA LS-40 represents the sweet spot in the EWA range in terms of performance and value. While LS-25 is almost coincident with LS-40, the extra vitality, scale and bass presence on offer really makes LS-40 special.


    Bass is impactful and extremely fast, with irresistible timing and agility. It is presented with huge scale and presence, powerful but not overwhelming; LS-40 presents a world of textural detail within the bass, revealing each musical nuance and cue in its own time and space.


    Midrange is crammed with detail and information, heroic in its reach and resolution, presenting a vivid analogue of the original performance. Dynamics are superb and ever in flux, with huge potential and subtlety; the tonality and deeper musical details and timings are laid out for you to savour.


    Treble is extended, sweet and defined, without the first hint of hardness even at volume; no listener fatigue here!


    LS-25 & 40 cannot be bi-wired, but jump links are available from ABCaudio. If purchased with your LS-40, a 30% discount is automatically applied to your jump links.


    As always, EWA products are hand made in the UK at the time of order. Once they are received, you have thirty days to listen and evaluate your new acquisition in the context of your own system. If you do not like it, no problem! You may return it for a full refund, minus only shipping costs. However, we are confident you will love it!

    • Construction

      EWA LS-40 is designed, manufactured and assembled in the UK. It is a specialist cable; every part being made to EWAs exact specification.


      LS-40 is manufactured and assembled to Colin J Wonfor’s design, a ground up construction using no off-the-shelf parts. The high-quality copper (all eighty-four individually insulated cores in litz configuration) is just what is required to bring the best out of the carefully considered and painstakingly refined geometry and design of the cable, something which has been developed over many years. The cable has inbuilt common mode inductance which is much stronger than is usually found, resulting in an excellently low noise floor. Resistance and capacitance are commendably low, meaning LS-40 allows your amplifier and loudspeaker to truly work together in harmony with almost zero phase angle changes.


      Despite being a reference grade product, we believe one of the the finest performing loudspeaker cables available anywhere, we favour a simple, low mass termination of good quality. As standard, LS-40 is available with low mass beryllium copper items, plated with nickel then gold. These are soldered at very high temperatures, using a most unique solder. However, Furutech plugs and spades are also available, or WBT if one prefers.

    • Specification

      Measured at 3M using AIM LCR DATABRIDGE 401, at 21C.

      Capacitance: 98pF

      Single wire inductance: 14uH

      Common mode inductance: 25uH.

      Resistance: 60mR


      Core material: highly purified copper, forty two per side (litz: individually insulated)

      Overall size: 25mm X 5mm.

      LS-40 is flexible and has a good bend radius, it can be coiled