ceiling speaker TC52: 5.25"/0.75",75W TC62:6.5"/1",100W TC82:8"/1",120W Ceiling Speakers - TC SeriesTC52,TC62,TC82 Woofer 5-1/4",6-1/2",8"Polypropylene Tweeter 3/4”,1",1"Ferrofluid cooled silk dome in swivel mount +/-3dB Treble Switch Power handling 75/100/120Watts Frequency response 60/50/45 - 20,000Hz Sensitivity 88/89/89dB@1W/1M Impedance 8Ohms TC Series ceiling speaker