Tributaries - 4SP - Star-Quad Speaker Cable (Single) Series 4 Star-Quad Speaker cables begin with ultra-pure highly conductive oxygen-free copper (HC-OFC) developed specifically for audio applications. Two 12AWG speaker conductors are the result of combining a 16AWG and 14AWG conductors opposite each other in a 4 conductor Star-Quad speaker arrangement. In the Star-Quad design Magnetic distortion is canceled by twisting strands clockwise and then wrapping the bundles counter-clockwise around one insulated large solid conductor. Tributaries Series 4 Star-Quad design results in a high performance speaker cable that looks as good as it sounds. The 4SP is designed with two 14AWG and two 16AWG AWG High Conductivity Oxygen-Free (HC-OFC) copper conductors that are terminated with Series 4 banana plugs and/or spade lugs. The conductors have a unique individually insulated dual-gauge configuration for superior sound clarity. The 4SP is terminated with red & black banana plug and/or spade lug connectors. The wires are secured by dual screw terminals to solid gold-plated brass Series 4 banana plug and/or spade lug connectors.