Monster S600 Speaker Cable - 70 FT. (No Frills Packaging) Same award-winning XPHP technologies now in CL3 rated jacket for in-wall use. Compact Time Correct for more accurate music reproduction for performance hookup to home theater system, A/V receiver, or amplifier to home theater speakers Patented Magnetic Flux Tube construction for more natural music reproduction LPE insulation reduces dielectric signal loss for greater clarity. Unique round shape and smooth, flexible jacket for easy installation.