3" (77 mm) Polypropylene Cone, Wide Band Speaker

Brand Name
Oaktron by MISCO
Model #
Part #
In stock

Known for its extremely wide-band output, this speaker is a proven universal-fit product*. It incorporates a Maximum Energy ferrite magnet and is an excellent choice for “tight squeeze” applications requiring high fidelity music or high intelligibility voice/communications audio. The cone is talc-filled polypropylene with a rubber surround which allows the speaker to be used either indoors or outdoors. 

  • Powerful Maximum Energy (ME) ferrite magnet
  • 20 Watts, Program Power
  • Convex half-roll, rubber surround
  • Copper-wound Kapton former voice coil
  • Talc-filled polypropylene cone
  • Black powder coated steel basket

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.   

This speaker is ideally suited for a wide variety of applications including:

  • Home audio speakers
  • Home theater systems
  • Automotive and motorcycle audio speakers
  • Arcade speakers
  • Casino gaming cabinets
  • Kiosk audio
  • Alarm and security systems
  • Smart devices and speakers

*This speaker is a front or rear panel mountable, but it does have an overhang, half-roll surround and therefore grille placement cannot be flush to the gasket.


Download Product Specifications (PDF) »

More Information
Brand Name Oaktron by MISCO
Model # 77-WB08-01
Height 2.0000
Width 4.0000
Length 4.0000
Size, Nominal (inch & mm) 3" (77 mm)
Shape of Speaker Square
Speaker Type Wide Range Speaker
Application Arcade Gaming, Casino Gaming, Indoor, Kiosk, Outdoor
Environment Outdoor / Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 8
Rated Power IEC268-5 (W) 15 Watts
Rated impedance (Ω) 8
Power, Continuous (W) 10
Power, Program (W) 20
Frequency range (Hz) FO-15,000
Sensitivity (dB SPL) ¹ 83
Resonant Frequency (Fs) (Hz) 103
DC resistance (Re) (Ω) 6.7
Voice Coil Inductance (Le) (mH) 0.24
Mechanical Q factor (Qms) 3.07
Electrical Q Factor (Qes) 1.48
Total Q factor (Qts) 1.00
Mechanical Resistance (Rms) (kg/s) 0.78
Compliance equivalent volume (Vas) (L) 0.78
Suspension Compliance (Cms) (mm/N) 0.65
Surface area of diaphragm (Sd) (cm²) 29.22
Moving mass (Mms) (gm) 3.71
Magnetic Gap Height (mm) 4.5
Coil winding height (mm) 5.7
Maximum linear excursion (Xmax) (mm) 0.6
Motor Force Factor (BL) (T•M) 3.3
Efficiency (η₀) (%) 0.06
Efficiency Bandwidth Product (EBP) (Fs/Qes) 69.23
Basket type Stamped Steel with black powder coat
Terminal size 5.2 x 0.5 mm (0.205" x 0.020")
Voice coil diameter (mm) 19.3802
Voice coil wire material Copper
Voice coil former material Aluminum
Voice Coil Winding Single, two layers
Magnet Material Ferrite
Magnet weight (gm) 85.05
Cone body material Talc Filled Polypropylene
Cone surround material Convex Half Roll Rubber
Dust cap material Talc Filled Polypropylene
Spider Material Conex
Net weight (kg) 0.1
Technical Notes

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