SB-158 military loudspeaker

The SB-158 military loudspeaker is a dynamic, built-in loudspeaker designed specifically for wet and damp operational environments and is fully compliant with MIL-STD for water immersion in up 100cm.

Technical specification
  • Weight: approx. 120 g
  • Terminals – solder lugs
  • Degree of protection (front) – IP 57 acc. to DIN EN 60529
  • Front-side waterproof up to 100 cm water depth, 1 h
  • Temperature temp. range – operation: -40°C up to +70°C Nb acc. to DIN IEC 68 section 2-14
  • Temperature Storage temp: -40°C up to +80°C Nb acc. to DIN IEC 68 section 2-14
  • Acceptable relative humidity: – £ 93 % Db acc. to DIN IEC 68 section 2-30
Electroacoustic specification
  • DC resistance – 3.7; 6; 10; 15; 20; 30; 50; 100; 200; 300 or 600 ohm as required
  • Power handling capability – 1 W (short-terme 2 W) acc. to DIN 45573
  • Nominal sound pressure level – 82 dB rel. 20 µPa at 1 W, distance 1 m, f = 1 kHz
  • Loudspeaker incorporated in a 1000 cm³ – box with a front panel of 150 mm x 150 mm



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