3" (77 mm) Square RoHS Waterproof Voice Range Speaker

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Designed for outdoor / indoor voice communications in intercom or drive-thru applications. The acrylic-treated cloth cone provides additional years of projected life (depending on environment). 

  • Acrylic-treated cone and edge
  • Rugged steel basket with zinc plating
  • 8 watts program power
  • Polyimide film voice coil form
  • High Energy (HE) ferrite magnet
  • Direct lead wires to the terminal to provide greater environmental protection for internal speaker wiring

 It features a four-hole mount design for ease of front or rear flush mounting. This speaker is not only ideal for intercom, it would be a great replacement speaker (standard hole placement) for radios, TVs, signaling and alarm devices.

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More Information
Brand Name MISCO OEM
Speaker Type Voice
Shape of Speaker Square
Size, Nominal (inch & mm) 3" (77 mm)
Environment Outdoor / Indoor
Application Drive-Thru / Kiosk, Indoor, Medical, Military, Outdoor , Signal / Alarm Systems, Transit, Voice Communications
RoHS Compliant Yes
Rated Impedance (Ω) 8
Rated Power IEC268-5 (W) 4 Watts
Program Power (W) 8
Sensitivity (dB SPL) ¹ 87
Frequency Range (Hz) 300 - 7,000
DC Resistance (Re) (Ω) 6
Resonant Frequency (Fs) (Hz) 357
Nominal Impedance (Z) (Ω) 8
Voice Coil Inductance (Le) (mH) 0.6
Mechanical Q Factor (Qms) 11.3
Electrical Q Factor (Qes) 2.62
Total Q Factor (Qts) 2.13
Basket Type Stamped Steel
Terminal Size (mm) 4.7mm x .51mm / 0.187" x .020"
Voice Coil Diameter (mm) 17.8 (0.56")
Voice Coil Wire Material Copper
Voice Coil Former Material Kapton, Polyimide film
Magnet Material Ferrite
Magnet Weight (gm) 68 (2.4 ounces)
Cone Body Material acrylic treated textile
Cone Surround Material acrylic treated textile
Spider Material phenolic treated textile
Dust Cap Material treated felt