12" (305 mm) 4 Ohm, Sub-Woofer

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Quality bass for your home or vehicle in a heavy-duty package! The unique 93059 12” subwoofer has a high-controlled suspension, a high tensile-strength spider, and 2” voice coil to ensure impressive bass performance and high-power handling in vented enclosures. A black steel frame, polypropylene cone, polyether surround, and dual ferrite magnet give this driver a professional look to match its design while still outputting reliable and smooth bass reproduction to fit your listening needs.

  • Subwoofer
  • 12” (533 mm) Basket Diameter
  • 150 Watts, 4 Ohms
  • High Tensile-Strength Spider
  • 2” Kapton Voice Coil
  • Dual Ferrite Magnet
  • Polypropylene Cone with Polyether Surround

Oaktron by MISCO is a premium line of high performance, ready-to-ship transducers and drivers for a wide variety of applications including high fidelity, arcade, and casino games, automotive, aerospace 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.

MISCO engineers use the world's most sophisticated loudspeaker measurement systems including the Klippel Analyzer to maximize and validate the speaker's design, as well as the Klippel QC module to ensure perfect unit to unit consistency and reliability.   

Download Product Specifications (PDF) »

More Information
Model # 305-SW04D-01
Height 9.0000
Width 12.0000
Length 12.0000
Size, Nominal (inch & mm) 12" (305 mm)
Shape of Speaker Round
Speaker Type Subwoofer
Application Pro Sound
Environment Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 4
Rated Power IEC268-5 (W) 150 Watts
Rated impedance (Ω) 4
Power, Continuous (W) 150
Power, Program (W) 300
Frequency range (Hz) 20 - 200
Sensitivity (dB SPL) ¹ 89
Resonant Frequency (Fs) (Hz) 20
DC resistance (Re) (Ω) 4.1
Voice Coil Inductance (Le) (mH) 2.872
Mechanical Q factor (Qms) 5.909
Electrical Q Factor (Qes) 0.219
Total Q factor (Qts) 0.83
Mechanical Resistance (Rms) (kg/s) 2.299
Compliance equivalent volume (Vas) (L) 245.1471
Suspension Compliance (Cms) (mm/N) 0.578
Surface area of diaphragm (Sd) (cm²) 547.39
Moving mass (Mms) (gm) 106.726
Magnetic Gap Height (mm) 9.53
Coil winding height (mm) 19.81
Maximum linear excursion (Xmax) (mm) 5.14
Motor Force Factor (BL) (T•M) 15.962
Efficiency (η₀) (%) 0.897
Basket type Steel
Terminal size 6.4 mm x 5.2 mm
Voice coil diameter (mm) 51.31
Voice coil wire material High Temperature Copper
Voice coil former material Kapton
Voice Coil Winding 2 Layers, Round Wire
Magnet Material Ferrite
Magnet weight (gm) 2154.6
Cone body material Paper
Cone surround material Rubber
Dust cap material Polypropylene
Net weight (kg) 5.14
Technical Notes

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