3.5 Inch (89 mm) Alarm and Voice Speaker

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Built to Order

The C5-15-4873 is the ultimate 3.5-inch alarm and voice speaker engineered to conquer the challenges of any environment. With its massive alnico magnet, this speaker delivers a loud, resonant, and reliable sound. It's not just any speaker; it's built to last. The phenolic resin-treated cloth cone is designed to withstand water, dust, and chemicals, making it the perfect choice for those needing a speaker to handle the most challenging conditions.

  • Loud, resonant, and reliable sound
  • Can withstand water, dust, and chemicals
  • High durability
  • Perfect for challenging environments
  • Ensures alerts are heard and words are clear.

MISCO engineers use the world's most sophisticated loudspeaker measurement systems, including the Klippel Analyzer, to maximize and confirm the speaker's design and the Klippel QC module to ensure perfect unit-to-unit consistency and reliability. 

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More Information
Brand Name MISCO OEM
Speaker Type Alarm
Shape of Speaker Square
Size, Nominal (inch & mm) 3" (77 mm)
Environment Outdoor / Indoor
Application Indoor, Military, Outdoor , Signal / Alarm Systems
RoHS Compliant No
Rated Impedance (Ω) 3
Rated Power IEC268-5 (W) 3 Watts
Program Power (W) 6
Sensitivity (dB SPL) ¹ 91
Frequency Range (Hz) 300 - 12,000
DC Resistance (Re) (Ω) 3.0
Resonant Frequency (Fs) (Hz) +/- 15% 450
Nominal Impedance (Z) (Ω) 3
Total Q Factor (Qts) 0.83
Basket Type Black Powder Coat Stamped-Steel
Terminal Size (mm) 4.7 x 0.5 mm
Voice Coil Diameter (mm) 19.38
Voice Coil Wire Material High Temperature Copper
Voice Coil Former Material Aluminum
Magnet Material Alnico
Magnet Weight (g) 130.41
Cone Body Material Phenolic Treated Cloth
Cone Surround Material Phenolic Treated Cloth
Dust Cap Material Phenolic Treated Cloth
Net Weight (kg) 0.84
Technical Notes

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