Quantum QA65C Alpha Series 6.5-Inch Component Speaker Alpha Series 6.5 inch Component Speaker Tweeter: 1-inch PEI dome tweeter , Multi-mount tweeter capability, Neo magnet MID: Electro-plated PP Cone, Ferric Oxide magnet, Rubber Surround, Stamped heavy gauge basket, Tooled rubber magnet boot Crossover: 12dB per octave crossover Max power 250 watts, Rms power 80 watts