12 Inch (305 mm) Pro-Audio Woofer/Subwoofer

Brand Name
Oaktron by MISCO
Model #
Part #
In stock

This 175-Watt woofer has a durable black powder coat, on a die cast aluminum frame, which prevents flexing at high power. The cone is a made from acoustic ribbed engineered paper stock for high rigidity. The accordion cloth compliance surround provides both stability and extended long-term use. A corrugated conex spider provides high linearity of compliance in both directions and includes sewn in tinsel leads for long term reliability. The voice coil uses high temperature edge wound copper on a polyimide film form for maximum thermal control. The vented magnet structure allows cooling needed to reduce power compression. 

  • Woofer
  • 12" (305 mm) basket diameter
  • 175 watts, 8 ohms, 96 dB SPL
  • 2.5" copper voice coil, Polyimide film former
  • Ferrite magnet, die cast aluminum basket
  • Paper cone, cloth surround

MISCO engineers test analysis reports are created, in part with the support of world's most definitive Klippel Analytics, which are used to validate final design.  Oaktron by MISCO is the premium line of high performance, ready-to-ship transducers for a wide variety of applications including high fidelity, musical instrument, automotive and many more. From elegantly simple to highly specialized designs for unique and demanding applications, there is an Oaktron loudspeaker perfectly suited for your needs.

Pair this woofer with one of our MISCO Amplifiers.

Download Product Specifications (PDF) »

More Information
Brand Name Oaktron by MISCO
Model # 305-WF08-02
Size, Nominal (inch & mm) 12" (305 mm)
Shape of Speaker Round
Speaker Type Woofer
Application Pro Sound
Environment Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 8
Rated Power IEC268-5 (W) 175 Watts
Rated Impedance (Ω) 8
Continuous Power (W) 175
Program Power (W) 350
Frequency Range (Hz) 30 - 1,000
Sensitivity (dB SPL) ¹ 96
Resonant Frequency (Fs) (Hz) +/- 15% 45
DC Resistance (Re) (Ω) 6.8
Voice Coil Inductance (Le) (mH) 0.91
Mechanical Q Factor (Qms) 2.15
Electrical Q Factor (Qes) 0.48
Total Q Factor (Qts) 0.39
Mechanical Resistance (Rms) (kg/s) 6.50
Compliance Equivalent Volume (Vas) (L) 105.03
Suspension Compliance (Cms) (mm/N) 0.26
Surface Area of Diaphragm (Sd) (cm²) 539.1
Moving Mass (Mms) (gm) 49.7
Magnetic Gap Height (mm) 8.0
Coil Winding Height (mm) 19.1
Maximum Linear Excursion (Xmax) (mm) 5.5
Motor Force Factor (BL) (T•M) 14.1
Efficiency (η₀) (%) 1.89
Efficiency Bandwidth Product (EBP) (Fs/Qes) 93.7
Basket Type Die cast aluminum with a black powder coat
Terminal Size (mm) Knurled push-type spring connectors
Voice Coil Diameter (mm) 63.5
Voice Coil Wire Material High temperature copper
Voice Coil Former Material Polyimide film
Voice Coil Winding Single layer, edge wound
Magnet Material Ferrite
Magnet Weight (g) 1562
Cone Body Material Engineered and treated paper pulp
Cone Surround Material Pre-treated accordion cloth
Dust Cap Material Engineered and treated paper pulp
Spider Material Conex with woven in tinsel
Net Weight (kg) 5.75
Technical Notes

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