I had a pair of Equinox III+ 10 ft. biwired cables. They were very neutral. Detail was well preserved. Bass was very well defined, but possible a tad lean.
I now have a bi-wired set of Analysis Plus -- Oval 9 on the bottom and Silver Oval on top. In my system this was a step up in musicality, but I still have considerable respect for the Wireworld Equinox. Years ago I had various high end model Monster, cheap Tara, Audiodyne, and a few others I don't remember. The Wireworld Equinox III+ was a huge improvement.