Monster M Series MCX-1s MLock Master Pin Speaker Cable (10 ft. pair) (Discontinued by Manufacturer) Precision 24k gold contact connectors for superior signal transfer. Magnetic Flux Tube for maximum bass response and more natural sound. PEX dielectric for greater clarity and improved high-frequency response. Time Correct windings for accurate reproduction of music and film soundtracks. Unique round shape and smooth, flexible jacket for easy installation.