These JBL Club 620F 6.5" speakers feature a compact design, which means they’ll fit into more vehicles than many competitors, and their high sensitivity delivers outstanding performance even with modestly-powered factory systems. Rugged polypropylene cones with the Plus One design deliver hard-hitting bass and long performance life. The speakers' woofer cone is designed to deliver clean, non-resonant sound quality, while standing up to the demanding heat and humidity of the car environment.