Massive Audio M8B 8″ 4-Ohm 500W Mid-Range/Midbass Car Pro Audio Speaker


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  • 20oz Neodymium and Strontium Hybrid Magnet
  • 2″ Copper Voice Coil
  • Kapton Coil Former
  • Vented and Extended Core
  • Cast Aluminum Basket
  • Paper Cone
  • Cloth Cone Edge
  • Solid Composition Paper Dust Cap


Nominal Basket Diameter 8.3″, 210mm
Nominal Impedance 4 Ohms
RMS Watts 200 W
Music Program 500 w
Resonance 100 Hz
Usable Frequency Range 100Hz-3.5KHz
Sensitivity 100 dB
Magnet Weight 20 oz
Voice Coil Diameter 2″, 50.8mm
Resonant Frequency (fs) 100 Hz
DC Resistance (Re) 2.6
Mechanical Q (Qms) 0.929
Overall Diameter 8.3″, 210mm
Baffle Hole Diameter 7.24″, 184mm
Mounting Holes Diameter 0.22″, 5.5mm
Mounting Holes B.C.D. 7.72″, 196mm
Depth 3.74″, 95mm
Coil Construction Copper Voice Coil
Coil Former Kapton Former
Magnet Composition Neodymium and Strontium Hybrid Magnet
Basket Materials Cast Aluminum
Cone Composition Paper Cone
Cone Edge Composition Cloth
Dust Cap Composition Solid Composition Paper
Weight 6.5 lbs
Dimensions 8 x 8 x 4 in
Speaker Design


RMS Power

Peak Power


Product Type





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