2 Inch x 3.5 Inch (50 mm x 90 mm) Oval Shaped Wide Range Speaker

Brand Name
Oaktron by MISCO
Model #
Part #
In stock

A wide-range speaker designed for clear sound and reliability! A dual neodymium magnet provides this driver ample output for a variety of applications, including voice communications, casino and arcade cabinets, and kiosks. Hook this speaker up with ease as well, thanks to a set of polarized terminals attached to a compact yet solid steel frame. If you want strength within your sound, choose the 93018.

  • Wide range speaker
  • 2 inch x 3.5 inch (50 mm x 90 mm) basket diameter
  • 9 watts, 8 ohms, 88 dB SPL 
  • Dual neodymium magnet, stamped steel frame
  • Paper cone, polarized terminals

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.   

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More Information
Brand Name Oaktron by MISCO
Model # 50X90-WB08-02
Size, Nominal (inch & mm) 2" Oval (50 mm)
Shape of Speaker Oval
Speaker Type Wide Range
Application Arcade Gaming, Casino Gaming, Drive-Thru / Kiosk, Indoor, Voice Communications
Environment Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 8
Rated Power IEC268-5 (W) 9 Watts
Rated Impedance (Ω) 8
Continuous Power (W) 9
Program Power (W) 18
Frequency Range (Hz) 258 - 20,000
Sensitivity (dB SPL) ¹ 88
Resonant Frequency (Fs) (Hz) +/- 15% 258
DC Resistance (Re) (Ω) 3.9
Voice Coil Inductance (Le) (mH) 0.10
Mechanical Q Factor (Qms) 3.53
Electrical Q Factor (Qes) 1.58
Total Q Factor (Qts) 1.09
Mechanical Resistance (Rms) (kg/s) 0.75
Compliance Equivalent Volume (Vas) (L) 0.15
Suspension Compliance (Cms) (mm/N) 0.24
Surface Area of Diaphragm (Sd) (cm²) 21.49
Moving Mass (Mms) (gm) 1.62
Motor Force Factor (BL) (T•M) 2.5
Efficiency (η₀) (%) 0.16
Efficiency Bandwidth Product (EBP) (Fs/Qes) 162.98
Basket Type Stamped steel
Voice Coil Wire Material Aluminum
Voice Coil Former Material Kapton
Voice Coil Winding Single layer
Magnet Material Neodymium
Cone Body Material Paper
Net Weight (kg) 0.13
Technical Notes

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