2.5" (64 mm) 8 Ohm Voice Range Speaker

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A water-resistant OEM speaker that provides voice band audio to signal and communications turnkey systems that must deliver sound when it matters most, no matter the circumstances. This 2.5" driver features a PEI cone and neoprene gasket sealed with M-110 adhesive to protect against water ingress, and ultimately ensure all comms stay clear, come rain or shine.

  • Water resistant voice range speaker
  • 2.5" (66 mm) steel basket diameter
  • PEI cone, neoprene face gasket
  • 4 watts, 8 ohm, 92 dB SPL
  • 0.6" copper voice coil, Kapton former
  • 2.35 Oz ferrite magnet

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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 / Indoor
Application Military, Signal / Alarm Systems, Voice Communications
RoHS Compliant Yes
Rated Impedance (Ω) 8
Rated Power IEC268-5 (W) 4 Watts
Program Power (W) 8
Sensitivity (dB SPL) ¹ 92
Frequency Range (Hz) 400 - 8,000
DC Resistance (Re) (Ω) 6.1
Resonant Frequency (Fs) (Hz) +/- 15% 400
Nominal Impedance (Z) (Ω) 8
Mechanical Q Factor (Qms) 11.3
Electrical Q Factor (Qes) 2.5
Total Q Factor (Qts) 2.10
Basket Type Stamped steel
Terminal Size (mm) 4.8 x 0.5
Voice Coil Diameter (mm) 15.2
Voice Coil Wire Material Copper
Voice Coil Former Material Kapton
Magnet Material Ferrite
Magnet Weight (g) 66.6
Cone Body Material PEI
Dust Cap Material Mylar
Net Weight (kg) 0.2
Technical Notes

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