Club coaxial and component speakers bring legendary JBL sound to more vehicles. Their compact design means they all fit in most cars and trucks on the road, while high sensitivity delivers outstanding performance, even when they are powered by factory stereos. Rugged polypropylene cones with the Plus One design deliver hard-hitting bass and long performance life. PEI balanced dome tweeters play smooth highs. Available in a range of standard sizes 3", 4", 5-1/4", 6", 6-1/2", 6" x 8" and 4" x 6" coaxial, 6" x 9" 3-way, and 5-1/4", 6-1/2", and 6" x 9" component they are the perfect upgrade from factory speakers. Acoustically damped, UV resistant polypropylene cone Every Club 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. Plus One woofer cone architecture Harmans patented (US patent 7,548,631) Plus One cones provide more overall speaker cone area than other cones in its class the result is higher sensitivity, increased low-frequency output and greater musical character.