4.5 Inch (114 mm) Wide Band / Midrange Speaker

Brand Name
Oaktron by MISCO
Model #
Part #
In stock

This versatile 4.5" speaker provides broad band frequency response from 80 - 13,000 Hz.  The cone is carefully engineered from a proprietary paper stock to be both still and lightweight.  The cone surround is treated cloth providing compliance and alignment. The voice coil is made of copper clad aluminum wire to provided extended response. It has a powerful 12 oz ferrite magnet with a vented pole for excellent thermal management. 

  • Wide band / midrange speaker
  • 4.5" (114 mm) basket diameter
  • 40 watts, 8 ohm, 92 dB SPL
  • 1" aluminum voice cloil, polyimide film former
  • Ferrite magnet, stamped steel basket
  • Engineered paper cone, treated cloth surround

MISCO engineers test and analyze the performance of these speakers, using world's most loudspeaker measurement systems including Klippel Analyzer and 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.

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More Information
Brand Name Oaktron by MISCO
Model # 114-WB08-01
Size, Nominal (inch & mm) 4" (100 mm)
Shape of Speaker Round
Speaker Type Wide Range
Application Arcade Gaming, Auto / Motorcycle, Home Audio, Indoor, Musical Instruments, Pro Sound
Environment Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 8
Rated Power IEC268-5 (W) 40 Watts
Rated Impedance (Ω) 8
Continuous Power (W) 40
Program Power (W) 80
Frequency Range (Hz) 80 - 15,000
Sensitivity (dB SPL) ¹ 92
Resonant Frequency (Fs) (Hz) +/- 15% 101
DC Resistance (Re) (Ω) 6.1
Voice Coil Inductance (Le) (mH) 0.29
Mechanical Q Factor (Qms) 5.26
Electrical Q Factor (Qes) 0.57
Total Q Factor (Qts) 0.51
Mechanical Resistance (Rms) (kg/s) 0.52
Compliance Equivalent Volume (Vas) (L) 4.47
Suspension Compliance (Cms) (mm/N) 0.58
Surface Area of Diaphragm (Sd) (cm²) 73.9
Moving Mass (Mms) (gm) 4.3
Magnetic Gap Height (mm) 6.0
Coil Winding Height (mm) 9.9
Maximum Linear Excursion (Xmax) (mm) 2.0
Motor Force Factor (BL) (T•M) 5.4
Efficiency (η₀) (%) 0.77
Efficiency Bandwidth Product (EBP) (Fs/Qes) 176.6
Basket Type Stamped steel with black powder coat
Terminal Size (mm) 5.2 x 0.5 mm
Voice Coil Diameter (mm) 25.8
Voice Coil Wire Material Aluminum
Voice Coil Former Material Polyimide film
Voice Coil Winding Two layers
Magnet Material Ferrite
Magnet Weight (g) 336
Cone Body Material Engineered paper with treat
Cone Surround Material Half roll, pre-treated cloth
Dust Cap Material Engineered paper with treat
Spider Material Cloth
Net Weight (kg) 0.94
Technical Notes

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