CF2-6936x9 Inch 3-Way Loudspeaker - Marine GradePeak power handling: 300 wattsContinuous power handling: 150 wattsImpedance: 4 OhmFrequency response: 50Hz-20KHzRugged, aluminum textured stamped-steel basketDurable rubber surroundLightweight mineral-injected polypropylene woofer coneNeodymium tweeter magnet structuresSwiveling tweeterTitanium impregnated midrange cone with neodymium magnet structureSensitivity: 91dBGrills and all mounting hardware includedMounting depth: 3-3/8"Weight: 11 lbs (pair)Marine grade.