6.5 Inch (165 mm) Dual Voice Coil / Dual Tweeter Coaxial Speaker

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A robust and unique dual-tweeter coaxial speaker that does the work of two! This coax is built for outdoor sound systems needing a single driver that handles left & right stereo inputs. Weather resistant components, an ABS/glass filled tweeter bridge, and a powder coat treatment under an eye-catching blue basket finish protect this speaker from moisture, rust, and UV ray damage outdoors.

  • Coaxial speaker with dual tweeter
  • 6.5" (165 mm) steel basket diameter
  • 30 watts, 4 ohm, 88 dB SPL
  • 1" copper voice coil, Kapton former
  • PEI dome tweeter (2)
  • Ferrite magnet, polypropylene cone

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More Information
Brand Name MISCO OEM
Model # XM-5666-DT
Size, Nominal (inch & mm) 6" (152 mm)
Shape of Speaker Round
Speaker Type Coaxial
Application Outdoor
Environment Outdoor
RoHS Compliant No
Nominal Impedance (Z) (Ω) 4 + 4
Rated Power IEC268-5 (W) 30 Watts
Rated Impedance (Ω) 4 + 4
Continuous Power (W) 30
Program Power (W) 60
Frequency Range (Hz) 30 - 20,000
Sensitivity (dB SPL) ¹ 88
Resonant Frequency (Fs) (Hz) +/- 15% 40
DC Resistance (Re) (Ω) 3.5
Mechanical Q Factor (Qms) 10.12
Electrical Q Factor (Qes) 0.72
Total Q Factor (Qts) 0.67
Compliance Equivalent Volume (Vas) (L) 26.66
Suspension Compliance (Cms) (mm/N) 1.13
Surface Area of Diaphragm (Sd) (cm²) 12.87
Moving Mass (Mms) (gm) 15.1
Motor Force Factor (BL) (T•M) 4.23
Efficiency Bandwidth Product (EBP) (Fs/Qes) 54.17
Basket Type Stamped steel
Terminal Size (mm) 5.2 x 0.5
Voice Coil Diameter (mm) 25.4
Voice Coil Winding Single Layer
Magnet Material Ferrite
Magnet Weight (g) 566.99
Cone Body Material Polypropylene
Cone Surround Material Santoprene rubber
Dust Cap Material Polypropylene
Spider Material Cotton
Technical Notes

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