6.5 Inch (165 mm), 4 Ohm Woofer

Brand Name
Oaktron by MISCO
Model #
Part #
In stock

A woofer designed for car audio systems, bookshelf enclosures, and other indoor listening applications. This 4 ohm, 6.5" driver includes a 28 Oz ferrite magnet, a paper cone with rubber surround for natural and responsive low frequencies, and a set of dual lug terminals for custom installation options when connecting this to your audio systems.

  • Woofer
  • 6.5" (165 mm) steel basket diameter
  • 50 watts, 4 ohm, 87 dB SPL
  • 1.5" copper voice coil, Kapton former
  • 28 Oz ferrite magnet
  • Paper composite cone, rubber surround

MISCO engineers use the world's most sophisticated loudspeaker measurement systems including the Klippel Analyzer to maximize and validate the speaker's design, as well as the Klippel QC module to ensure perfect unit to unit consistency and reliability.   

Download Product Specifications (PDF) »

More Information
Brand Name Oaktron by MISCO
Model # MC62W-4C
Size, Nominal (inch & mm) 6" (152 mm)
Shape of Speaker Round
Speaker Type Woofer
Application Auto / Motorcycle, Home Audio, Indoor
Environment Indoor
RoHS Compliant No
Nominal Impedance (Z) (Ω) 4
Rated Power IEC268-5 (W) 50 Watts
Rated Impedance (Ω) 4
Continuous Power (W) 50
Program Power (W) 100
Frequency Range (Hz) 33 - 8000
Sensitivity (dB SPL) ¹ 87
Resonant Frequency (Fs) (Hz) +/- 15% 40
DC Resistance (Re) (Ω) 3.9
Voice Coil Inductance (Le) (mH) 0.49
Mechanical Q Factor (Qms) 6.66
Electrical Q Factor (Qes) 0.36
Total Q Factor (Qts) 0.34
Mechanical Resistance (Rms) (kg/s) 0.82
Compliance Equivalent Volume (Vas) (L) 17.67
Suspension Compliance (Cms) (mm/N) 0.71
Surface Area of Diaphragm (Sd) (cm²) 132.73
Moving Mass (Mms) (gm) 21.15
Magnetic Gap Height (mm) 7.92
Coil Winding Height (mm) 18.80
Maximum Linear Excursion (Xmax) (mm) 5.4
Motor Force Factor (BL) (T•M) 7.74
Efficiency (η₀) (%) 0.33
Efficiency Bandwidth Product (EBP) (Fs/Qes) 111.11
Basket Type Stamped steel
Terminal Size (mm) 5.2 x 0.5 (dual lug)
Voice Coil Diameter (mm) 38.7
Voice Coil Wire Material Copper
Voice Coil Former Material Kapton
Voice Coil Winding Two layer
Magnet Material Ferrite
Magnet Weight (g) 793.79
Cone Body Material Paper composite
Cone Surround Material Rubber
Dust Cap Material Felt
Net Weight (kg) 2.34
Technical Notes

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