Audio Solutions AS-D-2003 Digital Coax Cable 2000 Series, 3-Feet An oversized, solid 24K gold-plated center pin is the contact that picks up and delivers the signal at each end. Since silver transmits with less resistance than gold or brass, the silver solder in our Series 2000 accommodates smooth signal transfer and minimizes signal loss. Oxygen-Free Copper (OFC) Braided Shield , Aluminum (AL) Foil Shield Gas-Injected FPE Dialectic, Silver Content Solder Joints Silver Content Solder Joints