MB Quart Premium PVI269 6 x 9" 2-Way Component/Convertible Coaxial Speakers 6 x 9" 2-Way Component/Convertible Coaxial Speakers with 50-110 Watt Power Rating and 32Hz-32kHz Frequency Includes 40mm WideSphere tweeter assembly that fully addresses the inherent speaker Aluminum-coated phase plug, magnet heat sink cup for voice coil cooling Premium performance crossover with three-level tweeter attenuation Two-piece carbon-fiber reinforced composite chassis and polypropylene cone with edge-wound