8.5" Weatherproof PA Speaker with TransformerFeatures:Weather-resistant, aluminum constructionIncludes mounting bracketRubber bell protectorSelectable 70/25V transformer dial2-year warrantySpecifications:RMS Power: 15WMax. Power: 30WTransformer Type: 70/25VTransformer Power Taps: 70V: 15W, 10W, 5W, 3W, 1W25V: 15W, 10W, 3.7W, 1.9W, 1.3W, 0.6W, 0.4W, 0.1WTermination Type: WireSensitivity (1W/1M) 105dBMaximum SPL (Pmax/1m) 117dBDriver Impedance: 8 OhmsMagnet 4.9 oz. ferriteFrequency Response Range 450Hz - 15kHzDispersion@100Hz 75' conicalSpeaker Dimensions: 8.5" (Dia.) x 9" (D)Weight: 3.2 lbs.Material: AluminumColor: Grey