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Focal ISUB BMW 4 - 8 Inch Flat Subwoofer


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The new Focal ISUB BMW 4 is a subwoofer that delivers powerful bass thanks to its neodymium engine, a high performing Focal technology. With ISUB BMW 4, the sound is neutral and the install is quick thanks to the spacer integrated in the chassis that allows perfect integration into the original location. With its 4 Ohms impedance, it is ideal with your original amplification.


  • Quick installation
  • No wire to cut, no modification
  • 100% compatible with your vehicle
  • Sound quality superior compared to the original one
  • Mounting accessories included


For full Vehicle compatibility, visit

Technical Specifications

  • Subwoofer: 8" (200mm)
  • Magnet: Neodymium
  • Cone: Black Polyglass
  • Surround: Butyl
  • Impedance: 4 Ohms
  • Max. power: 180W
  • RMS. power: 90W
  • Sensitivity (2.83V/1m): 83dB
  • Frequency response: 35Hz – 200Hz
  • Crossover: Integrated

Further Information

Focal ISUB BMW 4 - Tech Sheet

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