Is anyone familiar with Ixos cables?

I found Ixos cables at half price. I am using Wireworld Solstace ic's but neeed 3 more and they are discontinued. Should I go for 3 more Wireworld cables of a different series or should I get the Ixos? I'm looking at Ixos 1003 which was comparatively priced to the Wireworld.They do have a silver series 1001 which i could do if it would make a great improvement over my existing cables. I am not familiar with the issues of silver vs others. I need about 6-7 of them. As always your opinions are appreciated