4505ND Specification

Throat diameter: 5" x 1/2" (125.5 x 13.2 mm)
  rectangular piston
Nominal impendance: 8 or 16 Ohm
Power capacity (AES): 80 W
Peak Power: 450 W
Sensitivity in:  
CD Horn 90° x 20°: 113 dB 1 W / 1 m
Efficiency: 25% (1000-3500)
max. SPL (cont.): 132 dB at 80 W
Frequency range: 500 - 20000 Hz
Recommended crossover: 1000 Hz
Voice Coil Diameter: 1.75" (44.4 mm)
Magnet Material: Neodymium
Flux density high-range: 2.2 Tesla
Voice Coil Material: Copper Clad Aluminum
  (2 layers inside and outside of the VC)
Voice Coil Former: Kapton™
Diaphragm Material: Polyester
 
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