SPT30A  Horn Loudspeaker
  • SPT30A  Horn Loudspeaker
  • Bogen Loudspeaker Horn
  • Bogen Loudspeaker Horn
  • Bogen Loudspeaker Horn
  • Bogen Loudspeaker Horn

SPT30A Weatherproof Horn Loudspeaker 70V by Bogen

Model #SPT30A

Regular Price: $243.83

Special Price $128.00

Product Overview

  • High intelligibility and efficiency; ideal for both one-way and talk back applications

  • Tap settings for 70V: 30, 15, 7.5, 3.7, 1.8 watts; for 25V: 15, 7.5, 3.7, 1.8 watts

  • Rotary tap impedance selector on SPT30A

  • Tilt and swivel base for easy positioning

  • Weatherproof, all-metal construction

  • 30 watts; 25/70 volt or 8-ohm operation

  • Screw terminals make installation fast and easy

  • Mountable to I-beam flange using Bogen’s BC1 Beam Clamp (sold separately)

  • Mountable to electrical box using Bogen’s HSES10 mounting strap (sold separately)

  • All-purpose mounting bracket

  • Self-aligning, field replaceable diaphragm

  • Textured mocha enamel finish

  • Limited lifetime warranty

  • Terminal Cover (TCSPT1) allows connection of conduit fittings to horn speakers (sold separately)


The SPT30A Weatherproof Horn Loudspeaker 70V by Bogen is a high intelligibility, compact, reentrant type loudspeaker, designed for paging systems and intercom systems.

Their sturdy, weatherproof, all-metal construction makes it perfect to use in industrial plants, warehouses, transportation terminals, construction sites, schools, and recreational areas.

This outdoor loudspeaker also includes a built-in, variable impedance selector switch for matching the speaker power requirements to a 25V or 70V constant-voltage line.


  • Power Rating (RMS): 30 watts continuous, 40 watts equalized
  • Frequency Response: 225 Hz to 14 kHz
  • Impedance: 25/70 volts
  • Sound Pressure Level: 125 dB @ four feet on axis with 30-watt input @ 1000 Hz
  • Dispersion: 100º
  • Sensitivity as Microphone: -22 dBm [Ref: 10 dynes/cm2]
  • Dimensions: 11" Diameter x 10-1/2" D
  • Product Weight: 6 lb.
  • Finish: Textured mocha enamel
  • Impedance Selector Switch Settings (SPT30A only): 25V @ 15, 7.5, 3.7, 1.8 watts 70V @ 30, 15, 7.5, 3.7, 1.8 watts

Additional Information

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