4" (100 mm) Square, Waterproof Voice Range Speaker

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A 4" voice communications speaker for intercom or drive-thru applications both indoors and outdoors. To provide additional years of life, this model's cone undergoes an acrylic treatment for waterproofing and weather resistance. Ideal for paging and communication systems installed in a variety of environments.

  • Voice range speaker
  • 4" (100 mm) steel basket diameter
  • 4 watts, 8 ohm, 91 dB SPL
  • 0.6" copper voice coil, aluminum former
  • Ferrite magnet, acrylic treated cone

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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 Commercial, Drive-Thru / Kiosk, Military, Outdoor , Voice Communications
RoHS Compliant No
Rated Impedance (Ω) 8
Rated Power IEC268-5 (W) 4 Watts
Program Power (W) 8
Sensitivity (dB SPL) ¹ 91
Frequency Range (Hz) 180 - 6,000
DC Resistance (Re) (Ω) 6.3
Resonant Frequency (Fs) (Hz) 408
Nominal Impedance (Z) (Ω) 8
Voice Coil Inductance (Le) (mH) 0
Mechanical Q Factor (Qms) 13.3
Electrical Q Factor (Qes) 7.5
Total Q Factor (Qts) 2.68
Basket Type Zinc Plated stamped Steel
Terminal Size (mm) 4.7 mm x 0.5 mm
Voice Coil Diameter (mm) 14.3
Voice Coil Wire Material Copper
Voice Coil Former Material Aluminum
Magnet Material Ferrite
Magnet Weight (gm) 68
Cone Body Material Treated Acrylic cloth
Cone Surround Material Treated Acrylic cloth
Spider Material Conex
Dust Cap Material Water resistant felt
Net Weight (kg) 0.251
Technical Notes

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