Pyle PHSP30TA 9.4-Inch Indoor/Outdoor 70 Volt PA Horn Speaker Aluminum Housing Power/Load Rating: 30 Watts Nominal Impedance: 8 Ohms Aluminum Housing - SPL(@ 1W/1m): 108dB Power/Load Rating: 30 Watts - Mounting Bracket & Hardware Included Nominal Impedance: 8 Ohms - Dimensions: 9.4'' H x 9.4'' W x 12'' D 70 Volt Transformer Tapping @ 30 / 15 / 7.5 / 3.5 - Color: White Frequency Range: 400 Hz - 10 KHz