The Skar Audio RPX69 are 6" x 9" 3-way coaxial car speakers engineered and designed for an upgraded listening experience. The sport series of RPX speakers have a sleek design and are reliably powerful, providing rich and clear sound as an upgrade to existing factory speakers. They work great on factory radio power or amplified power, and feature high quality build materials such as a microfiber paper cone and premium butyl rubber surround.