Siltech MXT Professional Series--Made of pure Copper, Silver and Gold.
What makes the Siltech MXT cables so special? It's the mixture. Siltech MXT cables combine ultra-high purity copper, silver, and copper in a configuration called "Power Coaxial." This unique metallurgical and geometric construction yields powerful bass, realistic voices, and delicate, extended highs. Their high current characteristics result in superb dynamics and stable imaging. The Siltech MXT interconnects are remarkable grain free and always present a relaxed and musical presentation. They are never fatiging.
A note about the Neutrix RCA connectors. These are a sonic and mechanical improvement over the original and no longer available MXT connectors. They also make the ground connection first so there is no noise if you make or break a connection while the components are on.