OK have been having a listen to the LS-40 for a bit now - thanks
@ABCaudio for the loan.
To summarise - these are wonderful sounding cables and I cannot really add much more than has been mentioned. Musical, superb details, solid and stable soundstage, shimmering highs, lovely midrange. Everything is present and in spades, I would not hesitate in recommending these to anyone at all.
Today I have focussed my listening on 3 tracks, having previously listened to a wider range of music.
Manu Katche / Imprint on SACD - drumming is fluid, cymbals crisp impact followed by a long decaying shimmer. Woodwind imparts lovely texture.
CJ / Trinity revisited / Sweet Jane on CD - vocals, bass, distorted electric guitar are heavenly. Pinpoint locations for Margo, Michael, Jeff and Ryan.
Eva Cassidy / Songbird / Late in the Evening on CD - getting height on Eva's vocals and the drum kit plus when the bass kicks in lovely zinging texture.
So will I buy them? The answer has to be no, in my system my existing cables give me all the above already! I cannot explain it at all, these are homemade £30 worth of materials. As a more objective test (and I accept this may not prove a lot), given I could not understand my findings vs what other have reported, I measured the response between cables using REW, single speaker full range and close-miked. The SPL and phase traces are almost identical. - A couple of tiny localised variances which could just be measurement anomalies.
For context, my listening room and system is listed in my profile under the information tab:
SOTM SMS-200 Ultra Neo > Bryston SP3 (cross-over at 80Hz)
> Bryston 4BSST > Dynaudio Special 40 using home-made copper foil speaker cables
> Rythmik 12" sealed active subwoofers (pair)
All my listening was with subs engaged, as this is my preferred listening mode I did not evaluate the cables in any other way.