2.5 Inch (66 mm) Waterproof Voice Range Speaker, 45 Ohm

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Built to Order

A specialized, all-weather replacement speaker for your voice applications! The RDC22WI-45 is an ideal, RoHS-compliant speaker for communication systems needing a 45-ohm driver. It sports an acrylic-treated cloth cone that prevents moisture absorption from rain and high humidity.

  • Voice range driver
  • 2.5” (64 mm) basket diameter
  • 4 Watts, 45 Ohms, 88 dB SPL
  • 0.6" copper voice coil, aluminum former
  • Ferrite magnet, stamped steel frame
  • Acrylic-treated cloth & surround

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More Information
Brand Name MISCO OEM
Speaker Type Voice
Shape of Speaker Square
Size, Nominal (inch & mm) 2" (50 mm)
Environment Outdoor
Application Voice Communications
RoHS Compliant Yes
Rated Impedance (Ω) 45
Rated Power IEC268-5 (W) 4 Watts
Program Power (W) 8
Sensitivity (dB SPL) ¹ 88
Frequency Range (Hz) 350 - 4,500
Resonant Frequency (Fs) (Hz) +/- 15% 480
Nominal Impedance (Z) (Ω) 45
Total Q Factor (Qts) 3.27
Basket Type Stamped steel
Terminal Size (mm) 4.7 x 0.5
Voice Coil Diameter (mm) 14.5288
Voice Coil Wire Material Copper
Voice Coil Former Material Aluminum
Magnet Material Ferrite
Magnet Weight (g) 68.04
Cone Body Material Acrylic treated cloth
Cone Surround Material Acrylic treated cloth
Spider Material Cotton
Dust Cap Material Felt
Net Weight (kg) 0.2
Technical Notes

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