4" (100 mm) 8 Ohm, Compact Woofer

Brand Name
Oaktron by MISCO
Model #
100-WF08-01
Part #
93075
In stock
$39.99

The 93075 is a low profile, lightweight woofer designed for sealed or vented enclosures within an indoor sound system – ideal in compact bookshelf speakers or other home audio projects.

  • Woofer
  • 4” (100 mm) basket diameter
  • 20 watts, 8 ohm, 82 dB SPL
  • 1” copper voice coil, polyimide former
  • Neodymium magnet, cast aluminum basket
  • Aluminum dome cone, natural rubber surround

MISCO engineers test and analyze the performance of these speakers using the world's most sophisticated loudspeaker measurement systems including the Klippel Analyzer and the Klippel QC, which confirm the final design.  

Pair this woofer with one of our MISCO Amplifiers.

Download Product Specifications (PDF) »

More Information
Brand Name Oaktron by MISCO
Model # 100-WF08-01
Height (Inch) 3.000000
Width (Inch) 4.400000
Length (Inch) 4.400000
Size, Nominal (inch & mm) 4" (100 mm)
Shape of Speaker Square
Speaker Type Woofer
Application Arcade Gaming, Casino Gaming, High-End Audio and Home Theater, Home Audio, Indoor, Musical Instruments
Environment Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 8
Rated Power IEC268-5 (W) 20 Watts
Rated Impedance (Ω) 8
Continuous Power (W) 20
Program Power (W) 30
Frequency Range (Hz) 52 - 20,000
Sensitivity (dB SPL) ¹ 82
Resonant Frequency (Fs) (Hz) 75
DC Resistance (Re) (Ω) 6.2
Voice Coil Inductance (Le) (mH) 0.37
Mechanical Q Factor (Qms) 4.83
Electrical Q Factor (Qes) 1.18
Total Q Factor (Qts) 0.95
Mechanical Resistance (Rms) (kg/s) 0.70
Compliance Equivalent Volume (Vas) (L) 2.48
Suspension Compliance (Cms) (mm/N) 0.63
Surface Area of Diaphragm (Sd) (cm²) 52.8
Moving Mass (Mms) (gm) 7.1
Motor Force Factor (BL) (T•M) 4.2
Efficiency (η₀) (%) 0.09
Efficiency Bandwidth Product (EBP) (Fs/Qes) 63.7
Basket Type Cast aluminum
Terminal Size (mm) 6.4 x 0.5 / 7.1 x 0.5
Voice Coil Diameter (mm) 25.4
Voice Coil Wire Material Aluminum
Voice Coil Former Material Polyimide film
Voice Coil Winding Single Layer
Magnet Material Neodymium
Magnet Weight (gm) 22.67
Cone Body Material Aluminum
Cone Surround Material Natural rubber
Dust Cap Material Aluminum
Net Weight (kg) 0.23
Technical Notes

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