3 Inch (77 mm) Waterproof Voice Range Speaker

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A voice range speaker for exterior intercoms and other heavy-duty sound applications in harsh outdoor environments. This 3" driver includes a 2.35 Oz ferrite magnet, an 8 ohm copper voice coil with a Kapton former, a waterproof acrylic treated cone and surround, and a set of teardrop terminals for easy installation into any system.   

  • Voice range speaker
  • 3" (77 mm) steel basket diameter
  • 6 watts, 8 ohm, 87 dB SPL 
  • 0.7" copper voice coil, Kapton former
  • 2.35 Oz ferrite magnet
  • Acrylic treated cloth cone & surround

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More Information
Brand Name MISCO OEM
Speaker Type Voice
Shape of Speaker Square
Size, Nominal (inch & mm) 3" (77 mm)
Environment Outdoor
Application Drive-Thru / Kiosk, Outdoor , Voice Communications
Rated Impedance (Ω) 8
Rated Power IEC268-5 (W) 4 Watts
Program Power (W) 8
Sensitivity (dB SPL) ¹ 87
Frequency Range (Hz) 300 - 7,000
DC Resistance (Re) (Ω) 6.0
Resonant Frequency (Fs) (Hz) +/- 15% 340
Nominal Impedance (Z) (Ω) 8
Mechanical Q Factor (Qms) 11.30
Electrical Q Factor (Qes) 2.62
Total Q Factor (Qts) 2.13
Basket Type Stamped steel with zinc plating
Terminal Size (mm) 4.7 x 0.5
Voice Coil Diameter (mm) 17.8
Voice Coil Wire Material Copper
Voice Coil Former Material Kapton
Magnet Material Ferrite
Magnet Weight (g) 68.04
Cone Body Material Acrylic treated cloth
Cone Surround Material Acrylic treated cloth
Dust Cap Material Felt
Net Weight (kg) 0.22
Technical Notes

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