Monster Cable Ultra THX 1000 Subwoofer Interconnect Cable (16 Feet) (Discontinued by Manufacturer) Dual-balanced conductors for more lifelike sonic reproduction. Easy to identify color-coded bands for simple, error-free hookup. 24k gold-plated contacts for optimum signal transfer and corrosion resistance. High-density double shielding for maximum rejection of RFI and EMI. Exceeds THX certification standards for proper system performance, reliability and ease of installation.