Bogen SP308A
30W 8 Ohm Paging Horn


The Bogen SP308A is a compact, high intelligibility, re-entrant-type loudspeakers, designed for one-way or two-way sound and communication systems.  Its sturdy, weatherproof, all-metal construction is ideal for indoor and outdoor use in industrial plants, warehouses, schools, construction sites, transportation terminals, and recreational areas.


  • High intelligibility and efficiency; ideal for both one-way and talk back applications
  • Weatherproof, all-metal construction
  • 30 watts; 8-ohm operation
  • Rotary tap impedance selector on SPT30A
  • Tilt and swivel base for easy positioning
  • Screw terminals make installation fast and easy
  • All-purpose mounting bracket
  • Self-aligning, field replaceable diaphragm
  • Textured mocha enamel finish
  • Limited lifetime warranty
  • Mountable to I-beam flange using Bogen's BC1 Beam Clamp (soldseparately)
  • Mountable to electrical box using Bogen's HSES10 mounting strap (sold separately)
  • Terminal Cover (TCSPT1) allows connection of conduit fittings to horn speakers (sold separately)


  • Power Rating (RMS): 30 watts continuous, 40 watts equalized
  • Frequency Response: 225 Hz to 14 kHz
  • Impedance: 8 ohms
  • Sound Pressure Level: 125 dB @ four feet on axis with 30-watt input @ 1000 Hz
  • Dispersion: 100º
  • Sensitivity as Microphone: -22 dBm [Ref: 10dynes/cm2]
  • Dimensions: 11" Diameter x 10-1/2" D
  • Product Weight: 5 lbs
  • Finish: Textured mocha enamel
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