Monster Standard THX-Certified Subwoofer Interconnect Cable (16 Ft) (Discontinued by Manufacturer) Separate protective shield for maximum rejection of RFI and EMI. 24k gold contacts for optimum signal transfer and corrosion resistance. Dual-balanced conductors for more lifelike sonic reproduction. Meets minimum THX certification standards for proper system performance, reliability and ease of installation. Easy to identify color-coded bands for simple, error-free hookup.