4.5 Inch (114 mm), 4 Ohm Coaxial Speaker

Brand Name
Red Line
Model #
Part #
In stock

This 4.5” extended range Red Line speaker fits high-power sound into a compact and lightweight driver. The 93077 provides quality sound thanks to its coaxially mounted PEI tweeter, and works best in shallow enclosures in motorcycles, ATV’s, or any application where weight and space are key design factors.

  • Extended range and voice speaker
  • 4.5" (114 mm) steel pin cushion basket
  • 35 watt, 4 ohm, 87 dB SPL
  • 1" copper voice coil, Kapton former
  • 1" PEI dome tweeter, coaxially mounted
  • Ferrite magnet, polypropylene cone

MISCO engineers test and analyze the performance of these speakers using the world's most sophisticated loudspeaker measurement systems including the Klippel Analyzer and the Klippel QC, which confirm the final design.  

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More Information
Brand Name Red Line
Model # 114-CX04-01
Size, Nominal (inch & mm) 4" (100 mm)
Shape of Speaker Other
Speaker Type Coaxial
Environment Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 4
Rated Power IEC268-5 (W) 35 Watts
Rated Impedance (Ω) 4
Program Power (W) 70
Frequency Range (Hz) 100 - 20,000
Sensitivity (dB SPL) ¹ 87
Resonant Frequency (Fs) (Hz) +/- 15% 145
DC Resistance (Re) (Ω) 3.8
Voice Coil Inductance (Le) (mH) 0.19
Mechanical Q Factor (Qms) 5.30
Electrical Q Factor (Qes) 2.16
Total Q Factor (Qts) 1.53
Basket Type Stamped steel
Terminal Size (mm) 6.4 x 0.8 / 4.7 x 0.5
Voice Coil Diameter (mm) 25.908
Voice Coil Wire Material High temperature copper
Voice Coil Former Material Kapton
Voice Coil Winding Single Layer
Magnet Material Ferrite
Magnet Weight (g) 136.08
Cone Body Material Polypropylene, carbon filled
Spider Material Cotton
Net Weight (kg) 0.51
Technical Notes

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