Caratteristiche Specifiche tecniche Downloads
Dove acquistare
PRECISION TRANSDUCERS

ND940

DRIVER
  • 4.0 inch, Kapton former, edge wound aluminium voice coil
  • 280W continuous program power handling
  • Frequency range: 500Hz - 20kHz
  • 4-slot optimized geometry phase plug
Dove acquistare
Caratteristiche
  • 4.0 inch, Kapton former, edge wound aluminium voice coil
  • 280W continuous program power handling
  • Frequency range: 500Hz - 20kHz
  • 4-slot optimized geometry phase plug
  • Titanium diaphragm, Polyimide surround

The ND940 is a ultra compact size, high performance, high power handling 4.0-inch diaphragm compression driver with a 1.4 inch exit throat. A thin copper ring is precision pressed on to the pole piece in order to modify and lower the inductance characteristics of the magnetic circuit and voice coil providing a controlled extension of the acoustic frequency response. The voice coil assembly is designed using a high strength, high temperature Kapton® voice coil former and edge wound copper clad aluminium wire directly joined to the diaphragm by RCF proprietary Direct Drive kapton technology. The ND940 features a 4-slot, optimised geometry, phase plug design. Extended computer assisted mathematical modelling and testing has resulted in a geometry that provides a balanced acoustic performance controlling and lowering air distortion and maximizing output.

Part number:

15100012
ND940 16 OHM
16ohm

15129053
ND940
8ohm

Specifiche tecniche
Specifiche generali
Diametro gola:
1.4 inch / 36 mm
Impedenza nominale (ohm):
8 ohm
Potenza musicale (watt)
280 W
Potenza:
140 W
Sensibilità (dB):
110 dB
Gamma di frequenza:
500 - 20000 Hz
Materiale Diaframma:
Pure Titanium
Materiale della sospensione:
Polymide
Design della sospensione:
Flat
Impedenza Minima (ohm):
8.50 ohm
Diametro Bobina:
4.0 inch / 102 mm
Materiale di avvolgimento della bobina:
Edgewound Aluminium
Design del former della bobina
Direct Drive Kapton
Numero di strati:
1
Strati bobina (tipologia):
outside
Densità del flusso magnetico (T):
2.0 T
Design del Rifasatore:
4 slot
Materiale del Rifasatore:
Aluminium
Magnete:
Neodymium
Anelli demodulanti bobina:
Copper
Parametri di Thiele & Small
Fattore Bl (Bl) (T x m):
17.60 T x m
Informazioni di montaggio
Diametro complessivo:
140 mm / 5.51 inches
Altezza complessiva
60 mm / 2.36 inches
Montaggio:
4 x 6 mm threaded holes at 90°
Conformità agli standard
Safety agency:
CE compliant
Dimensioni
Peso:
2.72 kg / 6 lbs
Informazioni di spedizione
Altezza imballaggio:
90 mm / 3.54 inches
Larghezza imballaggio:
195 mm / 7.68 inches
Profondità imballaggio:
170 mm / 6.69 inches
Peso imballaggio:
2.87 kg / 6.33 lbs