3" (77 mm) Waterproof Full Range Speaker, 8 Ohm

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The 77SF08-3WP full range speaker is a solid choice for voice, music, and gaming projects looking for a durable, consistent, and weather-resistant audio solution. A heavy-duty ferrite magnet and treated paper cone supports this driver's powerful and natural-sounding outputs. A protective foam surround and gasket ensure this driver's longevity. For outdoor systems with long-lasting wide band sound requirements, choose the 77SF08-3WP.

  • Full range / wide range speaker
  • 3" (77 mm) basket diameter
  • 10 watts, 8 ohms, 86 dB SPL
  • 1" copper voice coil, paper former
  • Ferrite magnet, stamped steel basket
  • Paper cone, foam surround

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More Information
Brand Name MISCO OEM
Speaker Type Full Range
Shape of Speaker Other
Size, Nominal (inch & mm) 3" (77 mm)
Environment Outdoor / Indoor
Application Arcade Gaming, Casino Gaming, Drive-Thru / Kiosk, Voice Communications
RoHS Compliant Yes
Rated Impedance (Ω) 8
Rated Power IEC268-5 (W) 10 Watts
Program Power (W) 20
Sensitivity (dB SPL) ¹ 86
Frequency Range (Hz) 130 - 19,000
DC Resistance (Re) (Ω) 6.7
Resonant Frequency (Fs) (Hz) 130
Nominal Impedance (Z) (Ω) 8
Mechanical Q Factor (Qms) 3.1
Electrical Q Factor (Qes) 1.1
Total Q Factor (Qts) 0.8
Basket Type Stamped steel
Terminal Size (mm) 5.2 x 0.5 / 2.8 x 0.5
Voice Coil Diameter (mm) 20.3
Voice Coil Wire Material Copper
Voice Coil Former Material Paper
Magnet Material Ferrite
Magnet Weight (gm) 102.06
Cone Body Material Paper
Cone Surround Material Foam
Dust Cap Material Mylar
Net Weight (kg) 0.31
Technical Notes

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