1.5 Inch (40 mm), 8 Ohm Voice Range Speaker

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This is a super thin specialty application speaker for use in either outdoor or indoor applications. This speaker was designed for high-performance, clear speech. The single-piece polyester cone makes a great water and dust barrier for IP 65 applications. Ideal for small, very thin, hand held communication devices for outdoor use. It also performs well for reproducing alarm tones for medical or point-of-sale equipment.

  • Voice range speaker
  • 1.5" (40 mm) diameter
  • 1 watt, 8 ohms, 81 dB SPL
  • 0.6" copper voice coil, paper former
  • Neodymium magnet, stamped steel frame
  • Polyester cone, PET surround

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More Information
Brand Name MISCO OEM
Speaker Type Voice
Shape of Speaker Round
Size, Nominal (inch & mm) 1" (25 mm)
Environment Outdoor / Indoor
Application Medical, Military, Signal / Alarm Systems, Voice Communications
RoHS Compliant Yes
Rated Impedance (Ω) 8
Rated Power IEC268-5 (W) 1 Watt
Program Power (W) 2
Sensitivity (dB SPL) ¹ 81
Frequency Range (Hz) 350 - 6,000
DC Resistance (Re) (Ω) 7.6
Resonant Frequency (Fs) (Hz) +/- 15% 660
Nominal Impedance (Z) (Ω) 8
Voice Coil Inductance (Le) (mH) 0
Mechanical Q Factor (Qms) 3.7
Electrical Q Factor (Qes) 9.66
Total Q Factor (Qts) 2.68
Basket Type Zinc plated stamped steel
Terminal Size (mm) Solder pads
Voice Coil Diameter (mm) 15.2
Voice Coil Wire Material Copper
Voice Coil Former Material Paper
Magnet Material Neodymium
Magnet Weight (g) 3.0
Cone Body Material Polyester
Cone Surround Material Single piece of polyester film
Dust Cap Material Incorporated in cone
Technical Notes

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