A cable whose job is to transmit just two or three octaves of audio information enjoys the most relaxed requirements of any interconnects in the system. Or does it? Long lengths, punishing environmental factors & the necessity to handle extreme dynamic range are all part of the subwoofer interconnect's job description. This subwoofer cable offers superb impact & detail while maintaining a "tough as nails" built quality! Twisted pair oxygen-free copper wire & foamed PE dielectric fight noise & hum, & are optimized for bass signal transmission. Oxygen-free copper conductors deliver awesome impact & bass detail. The low loss 100% foil & spiral-wound oxygen-free copper (OFC) shielding protects the important bass signals from electromagnetic interference (EMI) & radio frequency interference (RFI).