Sommer cable sc astral llx 120 db sc astral 0729 satellite cable white sommer cable 600 0960llx this sommer cable 600 0970 sc astral llx has a patented construction of carbon shielding around the solid wire and insulation as well as protective polyester foil underneath the outer pvc jacket this prevents material fatigue and results in consistent damping values for years to come conventional sat cables usually lose their good damping values during installation and assemblythe shape