Memphis Audio 15-MCX620 Oversized 6.5" 2-Way Car Coaxial Speakers (15MCX620) Carbon Fiber Cone - Strong but lightweight for better bass | Integrated Surround and Gasket - Increased durability and accuracy Swivel Mount Aluminum Alloy Tweeter - Excellent response in a variety of locations | Separate 12dB/Octave Crossover Network - More accurate reproduction Tweeter Attenuation (0dB/-3dB) - Allows customization of the sound | Tweeter Protection Circuitry - Great power handling | Mclip Crossover Mounting System - Allows secure mounting of the crossover RMS/Peak: 50/100 | Sensitivity: 89dB | Magnet Size: 10 oz Mounting Depth: 2.5" | Tweeter Size: 1"