Acoustic Research 6-Foot Pro Series Digital Coaxial Cable (Polybag) Split center pin 24K gold plated, 8-segment, precision connector for corrosion-free, precise connec High-purity silver-soldered internal connections for accurate signal transfer for true audio reprodu Multi-shielded design with two 95% copper braids and 100% aluminum Mylar foil for optimum isolation Proprietary design rubber/metal grip for easy, non-slip installation and removal Nitrogen-injected foam dielectric maintains 75 Ohm impedance for optimum digital audio signal transf