Woofer Size: 6.5? Power Handling: 150-Watts MAX 100Hz LP 12dB/Oct filter network crossover Frequency Response: 30Hz-1kHz Sensitivity: 86.7dB Impedance: 8-Ohm Voice Coil Diameter: 1? (25mm) Wide surround for deeper bass and higher speaker excursion Push type spring loaded terminals Easy to use Turn ‘N' Lock installation mechanism Edgeless and paintable rust-resistant grille Round and square grilles included Rough-In Kit Ready: RK-EC6 Overall diameter: 8.75? (223acmm) Cut out diameter: 7.75? (196mm) Mounting depth: 3.38? (85.9mm) Weight: 2.46lbs (1.12kgs)