SPT15A Weatherproof Horn Loudspeaker with Transformer 70V by Bogen

The Bogen SPT15A is a reentrant type loudspeaker, designed for paging systems and intercom systems. The sturdy, weatherproof, all-metal construction is ideal for indoor and outdoor use in industrial plants, warehouses, schools, construction sites, transportation terminals, and recreational areas. The Model SPT15A has a built-in, rotary impedance selector switch for matching the speaker power requirements to a 25V or 70V constant-voltage line.

SPECIFICATIONS

• Power Rating (RMS): 15 watts continuous, 20 watts equalized
• Frequency Response: 275 Hz to 14 kHz
• Impedance:
  SPT15A — 25/70 volts
• Sound Pressure Level: 121 dB @ four feet on axis with 15 watt input @ 1000 Hz
• Dispersion: 110º
• Sensitivity as Microphone: -22 dBm [Ref: 10 dynes/cm2]
• Dimensions: 9" Diameter x 9-1/4" D
• Product Weight:
  SPT15A — 4 lb.
• Finish: Textured mocha enamel