Building on the strengths of the award wining Tellurium Q Blue cable and going much further. The Tellurium Q Ultra Blue II speaker cable has been developed with home cinema, custom installation and good hi-fi performance in mind. If you like a full, rich, clear sound then you need to listen to your system with the Tellurium Q Ultra Blue. In terms of performance the Tellurium Q Ultra Blue II speaker cable sits assuredly between the entry level award wining Blue and the multi award wining Black cables.