3.5" (89 mm) Alarm and Voice Speaker

Brand Name
Part #
Built to Order
  • Buy 1 - 0$0.00


This driver makes dependable, high output sounds for harsh indoor and outdoor environments. A massive alnico magnet creates a loud and resonant response while a unique and durable phenolic resin treatment seals its cloth cone and proofs it from water, dust, and various chemicals. Choose the C5-15-4873 if you're looking for an alarm speaker designed to blast and last.

  • Low/Midrange Alarm Speaker
  • 3.5" (89 mm) Basket Diameter
  • 3 Watt, 3 Ohms
  • 4.6 Oz Alnico Magnet
  • Stamped-Steel Frame
  • Phenolic Resin Treated Cone
  • National Stock # 5965-00133-0694

Download Product Specifications (PDF) »

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
Sensitivity (dB SPL) ¹ 91
Frequency Range (Hz) 300 - 12,000
DC Resistance (Re) (Ω) 3.0
Resonant Frequency (Fs) (Hz) 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