ESB Audio 3.UMA Mid-High Unit, 2.5"/65 mm Mid. + 1"/25 mm Tw. (pair)

Main Features

• This special and exclusive component driver is a concept conceived way back in 1970’s. Its aim is to concentrate medium and tweeter emissions in a single virtual point. This minimizes phase delays and irregularities at the crossover point.
  
• The neodymium magnet is high grade type to eliminate magnetic losses at elevated temperatures and to concentrate more force in less space.
  
• The tweeter has a silk-impregnated, thin fabric dome diaphragm for a smooth sound, with an outer suspension covered with a high-loss damping material to eliminate edge vibration and resonance.
  
• Pressed paper cone with waterproof treatment (midrange) for the ideal marriage between lightness, stiffness and the ability of the cone to dampen any unwanted vibration.
  
• The voice coil uses an aluminum support and a double layer winding technology of copper wire with an aluminum core.

Technical Specifications

• Nominal Impedance: 4 Ohm
  
• Nominal Power: 60 (mid), 80 (tw) W
  
• Transient Power: 120 (mid), 160 (tw) W
  
• Frequency Response: 130 Hz ~ 25 KHz
  
• Sensitivity: 86 (mid), 91 (tw) dB 2.83v/1m