4" (100 mm) Voice Range Speaker w/ Aluminum Grill

Brand Name
MISCO OEM
Part #
90308
In stock
$55.00

A voice range speaker assembly made for outdoor voice communications, signals/alarms, and transit audio systems. This model includes a 4" speaker with a 4.8 Oz ferrite magnet, a 0.75" aluminum voice coil, as well as an acrylic treated cone and a pre-mounted aluminum grill for added environmental protection against moisture, heat, and wind.

  • Voice range speaker
  • 4" (100 mm) steel basket diameter
  • 10 watts, 8 ohm, 94dB SPL
  • 0.75" aluminum voice coil, Kapton former
  • 4.8 Oz magnet, environmental-resistant cone treatment
  • 6.5 x 4.7" aluminum grill, black powder coat

Download Product Specifications (PDF) »

More Information
Brand Name MISCO OEM
Speaker Type Voice
Shape of Speaker Round
Size, Nominal (inch & mm) 4" (100 mm)
Environment Outdoor
Application Outdoor , Signal / Alarm Systems, Transit, Voice Communications
RoHS Compliant No
Rated Impedance (Ω) 8
Rated Power IEC268-5 (W) 10 Watts
Program Power (W) 20
Sensitivity (dB SPL) ¹ 94
Frequency Range (Hz) 300 - 5000
DC Resistance (Re) (Ω) 6.4
Resonant Frequency (Fs) (Hz) 685
Nominal Impedance (Z) (Ω) 8
Mechanical Q Factor (Qms) 9.99
Electrical Q Factor (Qes) 5.96
Total Q Factor (Qts) 3.73
Basket Type Stamped steel
Terminal Size (mm) 4.8 x 0.5
Voice Coil Diameter (mm) 19
Voice Coil Wire Material Copper clad aluminum
Voice Coil Former Material Kapton
Magnet Material Ferrite
Magnet Weight (gm) 136
Cone Body Material Acrylic treated textile
Cone Surround Material Acrylic treated textile
Dust Cap Material Acrylic treated textile
Net Weight (kg) 0.52
Technical Notes

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