5 Inch (127 mm), 8 Ohm Voice Range Speaker

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The Oaktron T-4053 5-inch, 8-ohm voice range driver serves as a great replacement speaker for commercial aircraft and aerospace communication systems. This model delivers high-quality audio between 180-7500 Hz, utilizing a powerful ferrite magnet, a felted paper cone, and a rugged stamped steel basket.

  • Voice range speaker
  • 5" (127 mm) steel basket diameter
  • 3 watts, 8 ohm, 87 dB SPL
  • 0.6" copper voice coil, aluminum former
  • 2.35 oz. Ferrite magnet, paper cone

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More Information
Brand Name MISCO OEM
Speaker Type Voice
Shape of Speaker Other
Size, Nominal (inch & mm) 5" (127 mm)
Environment Indoor
Application Aerospace, Voice Communications
RoHS Compliant No
Rated Impedance (Ω) 8
Rated Power IEC268-5 (W) 3 Watts
Program Power (W) 6
Sensitivity (dB SPL) ¹ 87
Frequency Range (Hz) 180 - 7,500
DC Resistance (Re) (Ω) 7.3
Resonant Frequency (Fs) (Hz) +/- 15% 250
Nominal Impedance (Z) (Ω) 8
Basket Type Steel
Terminal Size (mm) 4.8 x 0.5
Voice Coil Diameter (mm) 14
Voice Coil Wire Material Copper
Voice Coil Former Material Aluminum
Magnet Material Ferrite
Magnet Weight (g) 65
Cone Body Material Paper
Cone Surround Material Paper
Dust Cap Material Paper
Net Weight (kg) 0.25
Technical Notes

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