6.5" Marine Component System Water Resistant Mica Cone Rubber Edge Woofer UV Resistant White Grille, ABS White Composite Basket, and Magnet Cover, Impedance: 4 Ohm 9 oz. Ferrite Magnet Mylar Dome Tweeter 75 W RMS 150 W MAX Sensitivity: 90dB @ 1W/1M Frequency Response: 110Hz ~ 20KHz In-line Crossover Included Speaker Mounting depth: 2.75" Tweeter Mounting depth: 3/4"