I forgot to also mention that the Sonic Link Black Rhodium is unshielded. The current Black Rhodium Oratorio is the same but with a thick silver-plated braided screen for the return and using Eichmann bullet plugs in place of the rhodium plated RCA plugs. Both cables are Graham Nalty designs. In the UK, he is company founder of Sonic Link, Black Rhodium and Polar Cables.