ESB Audio 4.75 - 3" Midrange Speaker (Pair)

Main Features

• Ultra-low carbon steel alloy pole piece with CNC-machined magnetic analysis software (FEM), cold-forged from a single piece creating a perfect geometry. This produces an extra concentration of magnetic force precisely in front of the voice coil, focusing the magnetic force where it is needed.
  
• High-grade neodymium magnets. Not all magnets of the same size are equally strong. This high-grade (N-52), high-energy magnet offers high resistance to demagnetization and is more than 25% stronger with the same mass than more common lower-grade (N-48) magnets.
  
• Die-cast aluminum alloy basket frame. This structural design provides excellent rigidity and minimal resistance to airflow movement without affecting sound quality. The casting of this aluminum basket follows strict procedures to ensure compliance and help maintain consistent casting quality.
  
• CNC-machined ultra-low carbon steel alloy plate. This type of manufacturing process ensures perfect flatness, allowing it to sit perfectly on the magnet without reducing critical magnetic flux.
  
• Large aluminum copper-clad ventilated voice coil capable of handling very high power while reproducing music with extreme realism and high dynamics. The copper-clad aluminum wire voice coil is very lightweight and has excellent heat dissipation/capacity.
  
• Long-fiber, unbleached cellulose cone with a special external treatment that makes this material a perfect combination of lightness, rigidity, and internal damping.
  
• Edge mount made of soft nitrile rubber, UV-resistant and independent of temperature changes, to maintain the excellent acoustic properties of this speaker for a long time. The special edge design ensures perfect and free forward and backward movement.
  
• High-quality protective stainless steel grille.

Technical Specifications

• Nominal impedance: 4 Ohm
  
• Nominal power handling: 100 W
  
• Transient power: 200 W
  
• Frequency response: 140 Hz ~ 12 kHz
  
• Sensitivity: 90.6 dB 2.83 V/1 m