In-Ceiling Speaker Indoor Overall Height (In.) 7 3/4 in Overall Width (In.) 10 1/4 in Overall Length (In.) 10 1/4 in Enclosure Material Metal Tweeter Dia (In.) 3/4 in Tweeter Composition Silk Woofer Dia (In.) 6 1/2 in Woofer Composition Polypropylene Woofer 40 W Watt (RMS) Max Wattage 80 W Sensitivity (dB) 8 dB Impedance (Ohms) 8 ohm Transformer Settings 70V 1.9 W 15 W 3.7 W 30 W 7.5 W Power Taps @ 75V Frequency Response 60Hz to 20 000Hz Weight (Lbs.) 6.5 lb