2.5 Inch (66 mm) 4 Ohm, Wide Range Aerospace Speaker

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The DC22S-4FR is a square-shaped wide range speaker designed for voice communication systems with the need for fire retardant components. This powerful driver is ideal for small and narrow mounting enclosures in aerospace applications such as aircraft cabins.

  • Wide range speaker
  • 2.5" (66 mm) steel basket diameter
  • 6 watts, 4 ohm, 89 dB SPL
  • 0.6" copper voice coil, aluminum former
  • Paper cone & surround with flame retardant treatment
  • Ferrite magnet

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More Information
Brand Name MISCO OEM
Speaker Type Wide Range
Shape of Speaker Square
Size, Nominal (inch & mm) 2" (50 mm)
Environment Indoor
Application Aerospace, Indoor, Voice Communications
Rated Impedance (Ω) 4
Rated Power IEC268-5 (W) 6 Watts
Program Power (W) 12
Sensitivity (dB SPL) ¹ 89
Frequency Range (Hz) 260 - 10,000
Resonant Frequency (Fs) (Hz) +/- 15% 400
Nominal Impedance (Z) (Ω) 4
Basket Type Stamped steel
Terminal Size (mm) 4.8 x 0.5
Voice Coil Diameter (mm) 14.2
Voice Coil Wire Material Copper
Voice Coil Former Material Aluminum
Magnet Material Ferrite
Magnet Weight (g) 68
Cone Body Material Flame retardant paper
Cone Surround Material Flame retardant paper
Dust Cap Material Flame retardant paper
Net Weight (kg) 0.21
Technical Notes

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