2.25" (57 mm) Kevlar Cone, Wide Range Speaker

Brand Name
Oaktron by MISCO
Model #
57-WB08-1
Part #
93004
In stock
$16.88

This wide range speaker provides high output and sensitivity in a small package. A woven Kevlar cone with treated half roll cloth edge provides extended frequency response and durability in a wide variety of applications.  It is also an excellent choice for extended frequency ranges used for gaming audio, ultra-sound audio, and broad range music or voice.

  • Wide range speaker
  • 2.25" (57 mm) basket diameter
  • 10 watts, 8 ohms, 80 dB SPL
  • 0.8" aluminum voice coil, kapton former
  • Dual neodymium magnet, stamped steel 
  • Kevlar fiber cone, rubber 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 confirm 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
Brand Name Oaktron by MISCO
Model # 57-WB08-1
Size, Nominal (inch & mm) 2.25" (57 mm)
Shape of Speaker Square
Speaker Type Wide Range
Application Aerospace, Arcade Gaming, Casino Gaming, Home Audio, Kiosk, Medical, Musical Instruments, Transit, Voice Communications
Environment Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 8
Rated Power IEC268-5 (W) 10 Watts
Rated Impedance (Ω) 8
Continuous Power (W) 10
Program Power (W) 20
Frequency Range (Hz) 140 - 18,000
Sensitivity (dB SPL) ¹ 80
Resonant Frequency (Fs) (Hz) 167
DC Resistance (Re) (Ω) 7.3
Voice Coil Inductance (Le) (mH) 0.16
Mechanical Q Factor (Qms) 2.35
Electrical Q Factor (Qes) 0.77
Total Q Factor (Qts) 0.58
Mechanical Resistance (Rms) (kg/s) 0.91
Compliance Equivalent Volume (Vas) (L) 0.15
Suspension Compliance (Cms) (mm/N) 0.45
Surface Area of Diaphragm (Sd) (cm²) 15.2
Moving Mass (Mms) (gm) 2.0
Motor Force Factor (BL) (T•M) 4.5
Efficiency (η₀) (%) 0.09
Efficiency Bandwidth Product (EBP) (Fs/Qes) 217.2
Basket Type Stamped steel
Terminal Size (mm) 5.2 x 0.5 / 2.8 x 0.5
Voice Coil Diameter (mm) 20.3
Voice Coil Wire Material Aluminum
Voice Coil Former Material Kapton
Voice Coil Winding Single coil, two Layer
Magnet Material Dual neodymium
Magnet Weight (gm) 2 x 17
Cone Body Material Woven kevlar fiber
Cone Surround Material Rubber
Dust Cap Material Cloth
Spider Material Conex
Net Weight (kg) 0.132
Technical Notes

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

This speaker is a front or rear panel mountable, but it does have an over hang, half roll surround and therefore grille placement cannot be flush to the gaske