Profile: Wireworld By David Salz, Inc. manufactures cables. Our cable line includes HDMI & DVI cables, video cables, digital audio cables, audio interconnect and speaker cables. Our cables combine superior materials and technically advanced 75-ohm designs to provide lifelike video imaging. Our power cords feature a unique geometric structure and composite insulation materials to maximize inductive & capacitive filtering. Our Silver TubeTM plugs feature tubular silver-clad OFC contacts and a silicone rubber tension band to produce the lowest contact resistance.