5.25 Inch (133 mm) 8 Ohm, Home Audio Midwoofer

Brand Name
Oaktron by MISCO
Model #
Part #
In stock

The 93032 is a premium quality speaker meant as a midbass or woofer in a home audio sound system. The engineered design of this elegant solution allows for detailed audio in both sealed and vented enclosures.

  • Midwoofer
  • 5.25” (133 mm) basket diameter
  • 25 watts, 8 ohms, 86 dB SPL
  • 1" aluminum voice coil, aluminum former
  • 1.8 Oz. Ferrite magnet, cast aluminum frame
  • Polypropylene cone, 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.  

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More Information
Brand Name Oaktron by MISCO
Model # 133-WF08-01
Size, Nominal (inch & mm) 5" (127 mm)
Shape of Speaker Square
Speaker Type Midbass
Application High-End Audio and Home Theater, Home Audio
Environment Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 8
Rated Power IEC268-5 (W) 25 Watts
Rated Impedance (Ω) 8
Continuous Power (W) 25
Program Power (W) 50
Frequency Range (Hz) 40 - 10,000
Sensitivity (dB SPL) ¹ 86
Resonant Frequency (Fs) (Hz) +/- 15% 49
DC Resistance (Re) (Ω) 7.0
Voice Coil Inductance (Le) (mH) 0.17
Mechanical Q Factor (Qms) 3.19
Electrical Q Factor (Qes) 0.60
Total Q Factor (Qts) 0.50
Mechanical Resistance (Rms) (kg/s) 1.02
Compliance Equivalent Volume (Vas) (L) 9.10
Suspension Compliance (Cms) (mm/N) 0.89
Surface Area of Diaphragm (Sd) (cm²) 85.0
Moving Mass (Mms) (gm) 9.3
Maximum Linear Excursion (Xmax) (mm) 4.9
Motor Force Factor (BL) (T•M) 6.2
Efficiency (η₀) (%) 0.25
Efficiency Bandwidth Product (EBP) (Fs/Qes) 82.2
Basket Type Cast aluminum
Terminal Size (mm) 6.4 x 0.8 / 4.7 x 0.5
Voice Coil Diameter (mm) 25.4
Voice Coil Wire Material Aluminum
Voice Coil Former Material Aluminum
Voice Coil Winding Single layer
Magnet Material Ferrite
Magnet Weight (g) 50.8
Cone Body Material Polypropylene
Cone Surround Material Natural rubber
Dust Cap Material Cloth
Net Weight (kg) 1.32
Technical Notes

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