PC-671R / PC-671RV The ceiling/wall mount loudspeaker shall be an integrated cone driver, line transformer and baffle (grille) assembly. The driver shall be an 8" diameter cone type with an 8 ohm nominal impedance and a 5.3 oz. ferrite magnet. Power handling shall be 6 W (15 W program) with a frequency response from 90 – 16k Hz and sensitivity of 96 dB SPL at 1 W input measured at a distance of 1 m. The line transformer shall accept 25 V and 70.7 V inputs with taps for 0.5 W, 1 W, 2 W, 3 W and 6 W with an output impedance of 8 ohms with less than a 1.5 dB insertion loss. The baffle shall be made of CRS with a white, corrosion resistant paint finish. PC-671RV: A screwdriver adjustable, noise free volume control shall be mounted in the center of the baffle easily accessible for adjustment when the assembly is installed. The volume control shall withstand heat, fumes and other airborne contaminants. The baffle shall be 13.4" diameter with a 2.5" depth for the assembly behind the baffle. Holes shall be provided in the baffle for mounting to standard loudspeaker back boxes. Weight of the assembly shall be 3.5 lb. The ceiling mount loudspeaker shall be TOA model PC-671R / PC-671RV. The tile-bridge shall be TOA model TBF-100. The backcan shall be TOA model BBF-100 (note: requires TBF-100).