Acoustic Audio SP8c 8-Inch Round 2 Way Speaker (White) 300 Watts Max / 150 Watts RMS 8" High Rigidity Polypropylene Cone with Extended Throw Drive Assembly and Butyl Rubber Surround Frequency Response: 30Hz - 22 kHz (+/- 3dB) Efficiency/Sensitivity: 98dB at 1 watt 1 meter Cutout Size: 9.5" Overall Size: 11" Applications include home entertainment in wall and ceiling speaker, home audio surround sound, center channel speaker, sunrooms, atriums, patios, pool decks, spas, home theaters, cinema rooms, bathrooms, kitchens, boats, yachts, office or commercial use