6.125" (156 mm) 16 Ohm, 5 Watt, Submarine Speaker

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The MISCO LS-450/B pressure-proof submarine speaker was designed for use by the U.S. Navy and created to meet or exceed Military Specifications: MIL-L-24296A. Its audio output signal provides even response between 800 Hz - 2000 Hz (+/- 3 dB). It has a broad environmental tolerances and it may be used in tropical to frozen climates, both near freshwater or saltwater. It features brass and highly corrosion-resistant Monel* plated steel construction.

  • 10 Watts, program power with 96 SPL
  • Over two pounds of High Energy Plus (HE+) Alnico Magnets
  • National Stock # 5965-00583-4106
  • Built per MIL-L-24296A 
  • Highly corrosion-resistant brass & Monel steel body
  • Phenolic-impregnated cloth cone, surround, & cap
  • Copper-wound Lamitex voice coil
  • Robust #8 screw terminals

*In order to provide long-term service, the steel body structure is plated and painted with Monel, ensuring high corrosion resistance. Monel shows high strength and excellent corrosion resistance in both acidic and alkaline environments and is especially suitable for marine conditions. Monel typical applications are in marine engineering, chemical and hydrocarbon processing, heat exchangers, valves and pumps, and even musical instruments. Monel is used as the material for valve pistons or rotors in some higher quality musical instruments such as trumpets, tubas, and French horns.

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More Information
Brand Name MISCO OEM
Speaker Type Voice
Shape of Speaker Round
Size, Nominal (inch & mm) 6" (152 mm)
Environment Outdoor / Indoor
Application Military, Outdoor , Signal / Alarm Systems, Voice Communications
RoHS Compliant No
Rated Impedance (Ω) 16
Rated Power IEC268-5 (W) 5 Watts
Program Power (W) 10
Sensitivity (dB SPL) ¹ 96
Frequency Range (Hz) 600 - 2,800
DC Resistance (Re) (Ω) 7.2
Resonant Frequency (Fs) (Hz) 800
Nominal Impedance (Z) (Ω) 16
Voice Coil Inductance (Le) (mH) 0
Total Q Factor (Qts) 0.83
Basket Type Corrosion Resistant, Brass & Monel Plated & Painted Steel
Terminal Size (mm) #8 Screw terminals
Voice Coil Diameter (mm) 1.25" (32mm)
Voice Coil Wire Material Copper
Voice Coil Former Material Lamitex
Magnet Material Ferrite
Magnet Weight (g) 35 ounces (992.2) grams
Cone Body Material Phenolic Impregnated Cloth
Cone Surround Material Phenolic Impregnated Cloth
Dust Cap Material Phenolic Impregnated Cloth
Net Weight (kg) 5.9
Technical Notes

¹ Sensitivity is measured with 2.83 volt input, measured on-axis at 1 meter distance