8" (203 mm) 8 Ohm, Home Audio Woofer

Brand Name
Oaktron by MISCO
Model #
203-WF08-02
Part #
93047
In stock
$74.95

The 93047 is an ideal replacement driver for the high-sensitivity woofers in both the Bose 301 and 601 systems. A 6 ohm impedance makes this driver a flexible solution that fits within either 4 ohm or 8 ohm audio set-ups.

  • Woofer
  • 8” (203 mm) basket diameter
  • 40 watts, 6 ohms, 91 dB SPL
  • 1” copper voice coil, aluminum former
  • Ferrite magnet, stamped-steel basket
  • Paper cone, foam 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 # 203-WF08-02
Size, Nominal (inch & mm) 8" (203 mm)
Shape of Speaker Round
Speaker Type Woofer
Application Arcade Gaming, High-End Audio and Home Theater, Home Audio, Musical Instruments
Environment Indoor
RoHS Compliant No
Nominal Impedance (Z) (Ω) 6
Rated Power IEC268-5 (W) 40 Watts
Rated Impedance (Ω) 6
Continuous Power (W) 40
Program Power (W) 80
Frequency Range (Hz) 30 - 3,000
Sensitivity (dB SPL) ¹ 91
Resonant Frequency (Fs) (Hz) 37
DC Resistance (Re) (Ω) 7.4
Voice Coil Inductance (Le) (mH) 2.02
Mechanical Q Factor (Qms) 6.65
Electrical Q Factor (Qes) 0.50
Total Q Factor (Qts) 0.47
Mechanical Resistance (Rms) (kg/s) 0.85
Compliance Equivalent Volume (Vas) (L) 50.91
Suspension Compliance (Cms) (mm/N) 0.75
Surface Area of Diaphragm (Sd) (cm²) 219.0
Moving Mass (Mms) (gm) 24.2
Motor Force Factor (BL) (T•M) 9.1
Efficiency (η₀) (%) 0.51
Efficiency Bandwidth Product (EBP) (Fs/Qes) 73.7
Basket Type Stamped steel
Terminal Size (mm) 5.2 x 0.5
Voice Coil Diameter (mm) 25.4
Voice Coil Wire Material Copper
Voice Coil Former Material Aluminum
Voice Coil Winding Single Layer
Magnet Material Ferrite
Magnet Weight (gm) 340.2
Cone Body Material Paper composite
Cone Surround Material Polyether foam
Dust Cap Material Paper composite
Technical Notes

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