4 Inch (100 mm) Waterproof, 8 Ohm Voice Range Speaker

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Built to Order

This 4” OEM driver provides high efficiency from 200 to 10kHz, perfect as a replacement in mass transit and intercom systems. Its acrylic treated cloth cone and neoprene sealing face gasket prevent water ingress in systems exposed to moisture and extreme temperatures.

  • Voice range speaker
  • 4” (100 mm) steel basket iameter
  • 12 watts, 8 ohm, 92 dB SPL
  • 0.75" copper voice coil, Kapton former
  • Water-resistant cone, acrylic treated
  • Neoprene sealing gasket to prevent water ingress

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More Information
Brand Name MISCO OEM
Speaker Type Voice
Shape of Speaker Square
Size, Nominal (inch & mm) 4" (100 mm)
Environment Outdoor
Application Outdoor , Voice Communications
RoHS Compliant No
Rated Impedance (Ω) 8
Rated Power IEC268-5 (W) 12 Watts
Program Power (W) 24
Sensitivity (dB SPL) ¹ 92
Frequency Range (Hz) 200 - 10,000
DC Resistance (Re) (Ω) 8
Resonant Frequency (Fs) (Hz) +/- 15% 308
Nominal Impedance (Z) (Ω) 8
Total Q Factor (Qts) 1.45
Basket Type Stamped steel
Terminal Size (mm) 5.2 x 0.5
Voice Coil Diameter (mm) 19.38
Voice Coil Wire Material Copper
Voice Coil Former Material Kapton
Magnet Material Ferrite
Magnet Weight (g) 136.08
Cone Body Material Acrylic treated cloth
Cone Surround Material Acrylic Treated Cloth
Spider Material Cotton
Dust Cap Material Felt
Net Weight (kg) 0.44
Technical Notes

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