CSS8018 8" Low-Cost Ceiling Loudspeaker 20W 120° 100VJBLs Commercial Series Ceiling Speakers provide excellent performance for paging and background music applications. High sensitivity across the product line provides maximum sound level, even at low tap settings. Product Features Very high 97 dB sensitivity 10 Watt multi tap transformer for 100V, 70V and 25V distributed lines Fits CSS BB8 backcan Product Specifications General Driver Size (dual cone): 200 mm (8 in) Driver Sensitivity (mid range) (1W