Avaya BDT30A Bi-dir Paging Horn

30 watt Bi-directional Loud Speaker Horn with Twin Re-entrant Horns offers high efficiency excellent intelligibility and sturdy all metal construction. Includes twin re-entrant horns for bi-directional projection. Features: Rotary switch-selected power taps Tilt & swivel base for easy aiming Weatherproof design. Specifications: Power Rating (RMS): 30 watts continuous; 40 watts equalized Frequency Response: 225Hz to 14kHz Impedance: 25/70 volts Sound Pressure Level: 121dB @ four feet on axis with 30 watt; input @ 1000Hz each horn Dispersion: 100 each horn Sensitivity as Microphone: -22dBm [Ref: 10 dynes/cm2] Dimensions: 9-5/8in. dia. (each horn) x 12-1/8in. D Finish: Textured mocha enamel Impedance Selector Switch Settings: 25V @ 15 7.5 3.7 1.8 watts 70V @ 30 15 7.5 3.7 1.8 watts.