- High performance speaker cable for connecting precision speakers to smaller stereo and home theatre systems. Monster’s affordable Z1 features a compact, multi-gauge wire network design to deliver audiophile-grade sound quality from higher-end bookshelf systems and smaller home theatre systems. Time Correct® multiple gauge wire networks for increased clarity. PEX™ dielectric for lower noise floor. MultiTwist™ construction for improved reproduction of inner detail. Magnetic Flux Tube® for more natural music reproduction.