ESB Audio 4.100 100 mm Midrange Speaker (pair)

Main Features

• Ultra-low carbon steel alloy pole piece CNC machined with magnetic analysis software (FEM), cold forged from a single piece creating a perfect geometry. This produces an extra concentration of magnetic force right 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 for the same mass than more common lower-grade (N-48) magnets.
  
• Die-cast aluminum alloy basket chassis. This structural design offers excellent rigidity and minimal resistance to airflow movement without altering sound quality. The casting of this aluminum basket follows strict procedures that ensure compliance and help maintain consistent casting quality.
  
• CNC machined ultra-low carbon steel alloy plate. This type of manufacturing process ensures perfect flatness, so it sits perfectly on the magnet without reducing critical magnetic flux.
  
• Large aluminum copper-clad ventilated voice coil withstands 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 the perfect combination of lightness, rigidity, and internal damping.
  
• Surround made of soft nitrile rubber, UV resistant and immune to temperature variations, to maintain the excellent acoustic characteristics 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: 120 Hz ~ 10 kHz
  
• Sensitivity: 89.2 dB 2.83 V/1 m