6 Inch X 9 Inch (156 mm x 229 mm), 4 Ohm Full Range Speaker

Brand Name
Red Line
Part #
In stock

A compact 6 x 9” full range speaker with a small, but powerful lightweight neodymium magnet for space-conscious applications, including vintage automobiles, line arrays, and voice communication. A set of quick connect terminals allow for easy installation.

  • Full range speaker
  • 6 x 9" steel basket diameter
  • 20 watts, 4 ohm, 92 dB SPL
  • 1" aluminum voice coil, aluminum former
  • Vented neodymium magnet
  • Paper cone, cloth surround

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
Speaker Type Full Range
Shape of Speaker Oval
Size, Nominal (inch & mm) 6" Oval (152 mm)
Environment Indoor
Application Auto / Motorcycle
RoHS Compliant No
Rated Impedance (Ω) 4
Rated Power IEC268-5 (W) 20 Watts
Program Power (W) 40
Sensitivity (dB SPL) ¹ 92
Frequency Range (Hz) 20 - 20,000
DC Resistance (Re) (Ω) 3.3
Resonant Frequency (Fs) (Hz) +/- 15% 52
Nominal Impedance (Z) (Ω) 4
Voice Coil Inductance (Le) (mH) 0.1
Mechanical Q Factor (Qms) 3.8
Electrical Q Factor (Qes) 1.1
Total Q Factor (Qts) 0.84
Basket Type Stamped steel
Terminal Size (mm) 6.4 x 0.8
Voice Coil Diameter (mm) 25.4
Voice Coil Wire Material Aluminum
Voice Coil Former Material Aluminum
Magnet Material Neodymium
Magnet Weight (g) 27.8
Cone Body Material Paper
Cone Surround Material Treated cloth
Dust Cap Material Paper
Net Weight (kg) 0.3