JBL CSS8018 High-Output Ceiling Speaker (White) - 8inJBLs 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. Features Very high 97 dB sensitivity 10 Watt multi tap transformer for 100V, 70V and 25V distributed lines Fits CSS BB8 backcan Specifications Active Passive Passive Number of Included Speakers 1 Speaker Configuration Full Range Constant