Silver Serpent Subwoofer Y Adapter Cable High-End, High-Performance, Silver/Copper Hybrid, Low-Capacitance, Premium Sub Y Splitter Adapter Cable (RCA female to 2 RCA males) Made in the USA of U.S. wire and imported connectors. Award-winning Audiophile-grade audio cables. Instantly improves your home theater experience. Attach this cable to an existing subwoofer cable to split the signal into two inputs. Silver-coated conductors for guaranteed low-loss connections.