21 Inch (533 mm) "Ventuno" 1600 Watt Subwoofer

Brand Name
Oaktron by MISCO
Model #
Part #
In stock

For ambitious pro-sound and high-end audio projects, choose the Oaktron 93064. This 21", high sensitivity subwoofer uses a 7 lb. ferrite magnet, an engineered paper cone with water resistance, dual conex spiders, push style spring terminals, and an m-roll style, treated cloth surround, to provide audio for stadiums, theaters, military bases, and even home-theaters -- if you've got the space. When you need to feel your audio as well as hear it, pick up the 93064 subwoofer.

  • Subwoofer
  • 21" (533 mm) basket diameter
  • 800 watts, 4 ohms, 95 dB SPL
  • 4" copper voice coil, nomex former
  • Ferrite magnet, cast aluminum basket
  • Paper cone, cloth 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 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.

Download Product Specifications (PDF) »

More Information
Brand Name Oaktron by MISCO
Model # 533-WF04-01
Size, Nominal (inch & mm) 21" (533 mm)
Shape of Speaker Round
Speaker Type Subwoofer
Application High-End Audio and Home Theater, Home Audio, Indoor, Pro Sound
Environment Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 4
Rated Power IEC268-5 (W) 800 Watts
Rated Impedance (Ω) 4
Continuous Power (W) 800
Program Power (W) 1600
Frequency Range (Hz) 20 - 500
Sensitivity (dB SPL) ¹ 95
Resonant Frequency (Fs) (Hz) +/- 15% 32
DC Resistance (Re) (Ω) 3.7
Voice Coil Inductance (Le) (mH) 1.47
Mechanical Q Factor (Qms) 12.35
Electrical Q Factor (Qes) 0.55
Total Q Factor (Qts) 0.53
Mechanical Resistance (Rms) (kg/s) 5.51
Compliance Equivalent Volume (Vas) (L) 306.90
Suspension Compliance (Cms) (mm/N) 0.07
Surface Area of Diaphragm (Sd) (cm²) 1720.2
Moving Mass (Mms) (gm) 338.5
Magnetic Gap Height (mm) 12.7
Coil Winding Height (mm) 25.0
Maximum Linear Excursion (Xmax) (mm) 6.2
Motor Force Factor (BL) (T•M) 21.3
Efficiency (η₀) (%) 1.74
Efficiency Bandwidth Product (EBP) (Fs/Qes) 58.0
Basket Type Cast aluminum, powder coat black finish
Terminal Size (mm) Push style spring terminals
Voice Coil Diameter (mm) 100
Voice Coil Winding Single layer
Magnet Material Ferrite
Magnet Weight (g) 3124
Cone Body Material Engineered paper pulp with water-resistant lacquer treat
Cone Surround Material Treated cloth, m-roll style
Dust Cap Material Engineered paper pulp with water-resistant lacquer treat
Spider Material Dual conex spiders
Net Weight (kg) 13.15
Technical Notes

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