I think I should expand on my comments on the Luminous. I have listened to numerous cables in various combinations over the past year or so. There are always subtle differences at best between cables and they are certainly system dependent. As a result of this I felt that the Harmonic Tech Truthlink, which I like a bit more than the Silways in my system, while not perfect and maybe presenting too much of a sameness to much music, did not warrant changing out based on the competition. I am NOT willing to spend 1K and more retail for a meter pair of cables.
An audio buddy of mine bought a pair of these cables (Synchestra Sigs) which I was totally unfamiliar with. He bought them based on what he had read on AA and was intrigued at the prospect based on comments from various users. He invited me, actually about forced me, to come over one evening because I just had to hear these latest and greatest cables. I agreed but expected it was probably another one of those exaggerated improvements that would turn out to be something less over the long haul, we all know how that goes, right?
The MOMENT the music started I just could not believe what I heard. His system came alive in a way it never had before. The timbres of instruments and the articulation were just a staggering leap forward. A major ease and clarity without the emphasis or thinness that can come with a perceived sense of greater resolution. I just couldn't stop listening. I ended up staying 3 hours or so and never have I been so immersed in the music at his place.
I was so excited that I had him bring the cables up to my place that weekend. The same thing happened. We are talking two completely different systems. These cables are a major deal in both our systems. Not subtle at all but akin to a component upgrade.
As Driver stated, there could be something wrong with the cable based on your reaction. If I were you I would give them another try. I really believe the performance of these cables transcend the price range they are in.