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The EWA cable system was designed from the ground up by Colin Wonfor, and is a third generation development of his groundbreaking original design concepts (link).


Featuring advanced design, materials and geometry, a unique inductive shield that is actually designed into the cable itself and many other intelligent design features; EWA cables re-examine how audio cabling functions. For example, EWA cables can robustly resist EMI, RFI, and do not emit any themselves. To that end, they themselves function as common mode chokes, all but eliminating unwelcome noise on the precious signal. 

EWA cables feature very pure, very special conductors by Furukawa that are customized for our use. They had their genesis in high frequency applications and are ludicrously over-specified for audio. These special wires are certainly not usually found in audio cables!

Colin Wonfor takes the desirable properties of these remarkable conductors and employs them as part of a very advanced design, incorporating unique inductive shielding built into the cable. Thus clean, distortion free signal at all frequencies with vanishingly low phase angle changes become possible.

For example, LS-40 has negligible phase shift far beyond the the audio bandwidth. The phase change from input > output @ 100KHz is less than 0.7 degree over three metres (it had to be measured over three metres, because it wasn't measurable at one metre). As far as ABCaudio are aware, no-one else can do that or even get near.

There are multiple solid conductors in each loudspeaker and mains cable. Each ultra pure conductor is individually insulated with two invisible layers of ceramic and protected with three further layers of robust insulation material, all arranged into a litz formation. EWA loudspeaker and mains cables are rated to handle extreme current and voltages instantaneously and with ease.


LS-25 employs fourteen individual conductors in each side (twenty eight in a cable). LS-25 can handle electric peaks in excess of 6000Vrms for over a minute on each side.


LS-40 employs twenty one conductors in each side, or forty two per cable. Of course, the more conductor cores, the better current handling - and the bass response of the cable. 

LS-50 employs twenty eight conductors in each side, and fifty six in each cable.​

LS-80 is based on LS-40 and features forty two conductors each side, eighty four per channel) - this cable performs like nothing we have ever heard in terms of transient response, imaging, and speed. 

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CV-19: ABCaudio & EWA are able to continue fulfilling orders throughout CV-19 restrictions. We are taking our time to work hygienically and safely.

All products are carefully cleaned with medical alcohol before packing and shipment. 

Home of the EWA cable system and SECA technology for amplifiers, by Colin Wonfor.  Contact us:  All text and images copyright 2020. ABCaudio.