Club coaxial and component speakers bring JBL pro sound to more vehicles. Their compact design means theyll fit into more vehicles than many of our 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. Edge-driven silk dome tweeters deliver broader and smoother high frequency response never-harsh regardless of output level. Starfish Tweeter Mounting Adapter and I-Mount Tweeter Mounting Kit in component speaker system for easy installation. Available in a range of standard sizes - 3 4 5-1/4 6-1/2 6 x 8 4 x 6 6 x 9 and 3/4 - theyre the perfect upgrade from factory speakers.Plus One Woofer Cone ArchitecturePatented (US patent #7548631) Plus One cones provide more overall speaker-cone area than other speakers for the same size resulting in higher sensitivity increased low-frequency output and greater musical character.Acoustically Damped UV-resistant Polypropylene ConeEvery 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.Bigger Magnet Bigger Power HandlingThe new Club lineup features a larger magnet delivering higher power handling than competitors at similar price points.What's in the Box•Club 644F 4 x 6 Inch 2-Way Car Speakers - Pair•Foam Gasket•ManualSpecifications•Power Handling: 40W RMS 120W peak•Sensitivity (@ 2.83V): 92dB•Frequency Response: 75Hz 20kHz•Nominal Impedance: 3.0 ohms