4 Inch ceiling speaker 30W incl. trafo, firedome, mounting rails
4" speakers• Metal-plated equipped with 100V  / 70V line input• Special fireproof design with  iron fire dome (UL 203)• Iron Net resisting heat up to 130°C• Power output: REM 20 W / Max. 30 W
Technical datas
Speaker: 4" - 16 Ohm polypropylene wooferOutput power: 70V - 3.7, 7.5, 15, 30W 100V - 7,5, 15, 30W, COMImpedance: 70V /100VInput voltage: 1,327 kilo-Ohm /656 Ohm  /328 Ohm /164 Ohm Freq. response: 100 - 20 kHzS.P.L: 86 dB (1M/W)Mounting: Dog ear flip tabsConnection: Removable screw terminal  w/loop through outputIncl. Accessories: C-shaped support plate &  Tile support railsDimensions (DxP): 212 x 176 per cage 165 mmNet Weight: 3,5 kg