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ESB Audio 4.165 Mid-Woofer

4.1656.5” / 165mm Mid-Woofer

Overview & Key Features
The 4.165 is a high-performance mid-woofer built for dynamic midbass response and precision detail. Engineered with a CNC-machined ultra-low carbon steel motor structure and Y35 ferrite magnet, this driver focuses magnetic energy precisely at the voice coil for reduced distortion and enhanced control.

  • FEM-optimized motor with symmetrical magnetic flux
  • Die-cast aluminum alloy basket for rigidity and airflow
  • CNC-machined pole plate for magnetic efficiency
  • Vented copper-clad aluminum voice coil for high power handling
  • Long-fiber pulp cone with special treatment for ideal stiffness and damping
  • Soft nitrile rubber surround—UV and temperature resistant
  • Includes stainless-steel protective grille

Technical Specifications

  • Nominal Impedance: 4 Ohm
  • Power Handling: 150W RMS
  • Transient Power: 300W Peak
  • Frequency Response: 50 Hz – 6 kHz
  • Sensitivity: 92.5 dB (2.83V/1m)

 

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