Acoustic Audio CS-IC53 250 Watt In Ceiling Speaker 3-Way Home Theater, White 250 Watts Max and 125 Watts RMS Power Handling 5.25" Poly Mica Cone with Extended Throw Drive Assembly and Butyl Rubber Surround, Poly Mica midrange and tweeter Frequency Response: 50Hz - 20 kHz (+/- 3dB) Efficiency/Sensitivity: 92dB at 1 watt 1 meter Crossover Frequency: 3500 Hz Cutout Size: 6.65" Overall Size: 7.95" Applications include Home Entertainment, In-Wall/Ceiling Speaker, Home Audio Surround Sound, Sunrooms, Atriums, Home Theaters or Cinema Rooms, Patios, Pool Decks, Bathrooms or Kitchens, Offices or Commercial Use