5 Inch (127 mm) Voice Range Speaker, 4 Ohm

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Built to Order

The 5FUA is a powerful 5" Oaktron voice speaker designed for aircraft cockpit communication systems in need of a 4 ohm audio solution. A smooth yet strong response, high sensitivity, and compact design make this model a great driver for compact enclosures in need of powerful and reliable sound.

  • Voice range speaker
  • 5" (127 mm) steel basket diameter
  • 18 watts, 4 ohm, 94 dB SPL
  • 0.75" copper voice coil, aluminum former
  • 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) 4
Rated Power IEC268-5 (W) 18 Watts
Program Power (W) 36
Sensitivity (dB SPL) ¹ 94
Frequency Range (Hz) 180 - 6,000
DC Resistance (Re) (Ω) 3.6
Resonant Frequency (Fs) (Hz) +/- 15% 230
Nominal Impedance (Z) (Ω) 4
Basket Type Steel
Terminal Size (mm) 4.8 x 0.5
Voice Coil Diameter (mm) 19
Voice Coil Wire Material Copper
Voice Coil Former Material Aluminum
Magnet Material Ferrite
Magnet Weight (g) 154
Cone Body Material Paper
Cone Surround Material Paper
Dust Cap Material Felt
Net Weight (kg) 0.47
Technical Notes

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