2-way 4" 30W CSL-50CV in-ceiling speaker Compact ceiling speaker designed specifically for commercial applications. It is an ideal solution for restaurants, theme parks, retail stores, shopping malls, office buildings, airports and other applications where background music and paging are required. Equipped with a large 4'' magnetic woofer and a 3/4'' coaxial dome tweeter, they deliver warmth and punch at all levels. The sound reproduction is perfect for both speech and music. The units operate at 16 Ω or 100 V line for the CV versions. A selector switch is available to switch from low impedance to 100 V at 7.5, 15, 30 W. The 16 Ω output is particularly useful for parallel connection when a 100 V line is not required. Can be installed in a solid or tiled ceiling; a tile bridge pack is included with each speaker. The steel back-can meets safety standards and offers easy access to connections and settings. Characteristics Model: CSL-50CV 4" Full Range Ceiling Speaker 4" Woofer - 3/4" Tweeter Output power: 3.7/7.5/15/30W Impedance: 1.327K Ohm/656 Ohm/328 Ohm/164 Ohm Line transformer 70/100V Material: metal White color Frequency response: 100~20KHz SPL86dB 16 ohms Polypropylene woofer