I just said this in a different post, but its worth repeating here. You're asking too much of your cables. Looking at the qualities you lay out in your original post, it would probably be best to upgrade one of your other components. You have a much better chance of fixing your problem going that route.
Personally, I believe its best to just use cables for signal transfer. Really, if you do a good job matching your components, cable choice becomes very easy. At that point, just pick neutral sounding cable and you should get great results. But if you expect them to do too much, you will most likely be disappointed.
Personally, I believe its best to just use cables for signal transfer. Really, if you do a good job matching your components, cable choice becomes very easy. At that point, just pick neutral sounding cable and you should get great results. But if you expect them to do too much, you will most likely be disappointed.