Acoustically damped, UV-resistant polypropylene cone\n\nEvery Club speaker’s woofer cone is designed to deliver clean, non-resonant sound quality, while standing up to the demanding heat and humidity of the car environment.\n\nPlus One™ woofer cone architecture\n\nHarman’s 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.\n\nPEI balanced dome tweeters\n\nClub speakers play smooth, clear high frequencies with excellent dispersion, thanks to the PEI balanced dome tweeters.\n\nHigh performance – for everybody\n\nClub coaxial and component speakers bring legendary JBL sound to more vehicles. Their compact design means they’ll fit in most cars and trucks on the road, while high sensitivity delivers outstanding performance, even when they’re 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.