2.5" (66 mm) Square, 16 Ohm, 3 Watt, Wide Range Speaker

Brand Name
MISCO OEM
Part #
R66SF16-1
Built to Order
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THIS IS A “BUILT TO ORDER” PRODUCT

This is a universal fit 2.5-inch speaker ideal for small enclosures and tight spaces. Its 16-ohm voice coil is suited for running two speakers in parallel to achieve 8 ohms. With a lightweight paper cone it's ideal for full range music or very crisp and intelligible voice communications. Its large ferrite magnet helps deliver high levels of output for all applications. 

  • 6 Watts, Program Power
  • Engineered paper cone with high-compliance cloth edge
  • High Energy (HE) Ferrite magnet
  • RoHS compliant
  • Mylar dust cap
  • Steel basket structure

Designed for voice for wide range music range. It features a four-hole mount design for ease of front or rear flush mounting.

Download Product Specifications (PDF) »

More Information
Brand Name MISCO OEM
Speaker Type Wide Range Speaker
Shape of Speaker Square
Size, Nominal (inch & mm) 2.5" (66 mm)
Environment Indoor
Application Arcade Gaming, Casino Gaming, Kiosk, Transit, Voice Communications
RoHS Compliant Yes
Rated impedance (Ω) 16
Rated Power IEC268-5 (W) 3 Watts
Power, Program (W) 6
Sensitivity (dB SPL) ¹ 83
Frequency range (Hz) 250 - 13000
SMALL SIGNAL PARAMETERS
DC resistance (Re) (Ω) 16.1
Resonant Frequency (Fs) (Hz) 228
Nominal Impedance (Z) (Ω) 16
Voice Coil Inductance (Le) (mH) 0
Mechanical Q factor (Qms) 3.9
Electrical Q Factor (Qes) 3.64
Total Q factor (Qts) 2.70
MATERIAL DESCRIPTIONS
Basket type Stamped Steel
Terminal size 2.8 x 0.5mm (0.110" x 0.020")
Voice coil diameter (mm) 12.7 (0.5")
Voice coil wire material Copper
Voice coil former material Nomex
Magnet Material Ferrite
Magnet weight (gm) 40 (1.77 ounces)
Cone body material Engineered paper
Cone surround material Pre Treated Black Cloth
Spider Material Cloth
Dust cap material Mylar
Net weight (kg) 0.127
Technical Notes

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