Speco Technologies SP825C 8 inch in ceiling whole house stereo speaker pair. Speco Technologies has leveraged over 40 years of residential sound expertise in developing our core Series 25 in-ceiling audio line. Manufactured from durable, quality components, these speakers provide strong value. Enjoy the premium performance of full-range sound in your listening environment for countless years to come. Priced and sold per pair. Technical Specifications Woofer 8" Polypropylene Woofer with Rubber Surround. Tweeter 1" Pivoting silk dome tweeter. Power 50 Watts RMS / 100 watts max. Frequency 49Hz - 20kHz. Sensitivity 89 db 1w/1m. Impedance 8 ohms. Dimensions 11" Dia x 5" Depth. Mounting Dimension 9-1/2" Dia. Weight 4 lbs. ea.