I have both Neutral Reference and Clear Light speaker cables. They are not the same. Not even 'similar'. Of course, my description is in context of my audio system (and my ears), so treat it more like a relative difference.Neutral Reference is more 'full' sounding, rounded, with some added, but less precise upper bass. I'd say, bass was less controlled, a bit more boomy. There was also some glare in lower mids, which affected vocals.
I can imagine, it might be good to tame some of harshness from 'cold' and 'thin' sounding system.
Then, is the Clear Light... compared to the Neutral Reference, it is more open, more detailed in highs, but not 'brighter'. That's the great thing - Clear Light is more resolving, but some might still call it 'dark', because it doesn't add 'air' to the sound. Midrange lost its glare, but in my system that was a positive change. Vocals became more realistic. Lower frequencies became more tight, but actually with a bit more pointy punch (I perceive that as more control).
I also had Clear Sky RCA interconnects for a few days, which I compared to RCA Clear Light and the difference was: Clear Sky is slightly more 'cold' and less detailed compared to Clear Light. It was a quick comparison, so those were the most obvious differences. Not huge though - but might be important when you tweak those last bits of sound in your system.
One more thing with Clear speaker cables. Clear Sky does NOT have the Crossfield technology, used in Clear Light, Cygnus etc. I can't tell how much this one alone influence sound signature, but yeah - its internal construction is not similar to the other Clear speaker cables.
I'm not good in translating what I hear into words. Still though, I hope my description helps.
