4540ND Specification

Throat diameter: 1" (25.4 mm)
Nominal impendance: 8 or 16 Ohm
Power capacity (AES): 60 W
Peak Power: 300 W
Sensitivity  
CD Horn 90° x 75°, 1 W / 1 m: 114 dB
Plane Wave Tube, 1 mW: 118 dB
Max. SPL (cont.): 132 dB at 60 W
Frequency Range: 1200 - 30000 Hz
Recommended Crossover: 1900 Hz
Voice Coil Diameter: 1.5" (38 mm)
Magnet Material: Neodymium
Flux Density (Tesla): 2.2
Voice Coil Material: Copper Clad Aluminum
Voice Coil Former: Kapton TM
Diaphragm Material: Polyester
 
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