4 Inch (100 mm) Foam Surround, Wide Range Speaker

Brand Name
MISCO OEM
Part #
100SF08-3
In stock
$24.88
  • MSRP$37.99
  • Buy 1 - 0$24.88

A 4" wide range driver ideal for music and voice applications. This OEM model includes a durable paper cone, an overhung* polyether foam surround, and a powerful ferrite magnet.

  • Wide range speaker
  • 4" (100 mm) steel basket diameter
  • 20 watts, 8 ohm, 86 dB SPL
  • 0.7" copper voice coil, paper former
  • Paper cone, foam surround
  • 10 oz. ferrite magnet, RoHS compliant

*Grille placement cannot be flush to the gasket due to this design feature.

Download Product Specifications (PDF) »

More Information
Brand Name MISCO OEM
Speaker Type Wide Range
Shape of Speaker Square
Size, Nominal (inch & mm) 4" (100 mm)
Environment Indoor
Application Arcade Gaming, Casino Gaming, Drive-Thru / Kiosk, Indoor, Voice Communications
RoHS Compliant Yes
Rated Impedance (Ω) 8
Rated Power IEC268-5 (W) 20 Watts
Program Power (W) 40
Sensitivity (dB SPL) ¹ 86
Frequency Range (Hz) 100 - 15,000
DC Resistance (Re) (Ω) 6.8
Resonant Frequency (Fs) (Hz) +/- 15% 95
Nominal Impedance (Z) (Ω) 8
Voice Coil Inductance (Le) (mH) 0
Mechanical Q Factor (Qms) 5.2
Electrical Q Factor (Qes) 6.8
Total Q Factor (Qts) 1.34
Basket Type Stamped Steel with zinc plating
Terminal Size (mm) 5.4 x 0.5 (0.205" x 0.020")
Voice Coil Diameter (mm) 17.8 (0.70")
Voice Coil Wire Material Copper
Voice Coil Former Material Paper
Magnet Material Ferrite
Magnet Weight (g) 284 (10 ounces)
Cone Body Material Engineered paper
Cone Surround Material Polyether Foam
Spider Material Cloth
Dust Cap Material Engineered paper
Net Weight (kg) 0.31
Technical Notes

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