Monster THXI10020 THX Certified RCA Stereo Cables (20 feet) (Discontinued by Manufacturer) Meets minimum THX certification standards for proper system performance, reliability and ease of installation. Separate protective shield for maximum rejection of RFI and EMI. 24k gold contacts for optimum signal transfer and corrosion resistance. Easy to identify color-coded bands for simple, error-free hookup. Dual-balanced conductors for more lifelike sonic reproduction.