7.7 Inch Round Tower Coaxial Marine Speakers; 60 Watts RMS Continuous Power Handling; 4 OHMS Nominal Impedance; 55 Hz Through 25 kHz Frequency Response; 90.5 Decibel System Efficiency; Mica-Filled Polypropylene; 7.7 Inch Diameter x 12.52 Inch Depth; Satin Black Enclosure/ Gray Metallic Sport Grille; Set Of 2; Mounting Fixtures Sold separately