Gliderguider and Tvad, the regular HSR and High Purity interconnects differ in only one parameter, namely purity of the silver. The HSR is 99.99 silver and the High Purity starts as 99.99 and is boiled removing impurities and we are told it is 99.9999 silver, but do not have it assayed, something that would run about 2K per batch. The HP sounds cleaner and sweeter than the regular HSR, but they do share a lot as the design parameters are exactly the same. Hope this helps a bit and yes I am the maker.
Bob Crump
TG Audio/CTC Builders
