The Electro-Voice 3094TWB 16-Watt 8-Inch Standard Two-Way Ceiling Speaker with 4-Watt 25/70.7/100-Volt Transformer with Pre-Mounted Round is a two-way loudspeakers with 8-inch low-frequency cones and a high temperature voice-coil assemblies coaxially mounted with wide-dispersion cone tweeters (with Pre-Mounted Round). The dual magnet construction allows each speaker to bestructurally, magnetically, electrically and mechanically independentof the other. The 3094T utilize a single sectioncrossover network, centered at 3,000 Hz, which provides 6 dB ofattenuation for the tweeter outside its operating range. The 309-4Tis provided with a 25/70.7/ 100-V line transformer that offers insertion loss and a selection of 0.5-, 1-, 2- and 4-W taps.These components are designed to work together as a completesystem of in-ceiling loudspeakers and accessories. They providewide dispersion, high-efficiency, high- maximum output, ease of installation and wide-range reproduction of music or voice.WB versions come complete with a pre-mounted ceiling grille.