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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
Wo zu kaufen
Merkmale
  • 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

Spezifikationen
Allgemeine spezifikationen
Austrittsöffnung Halsdurchmesser: (mm) (Zoll)
1.4 inch / 36 mm
Zugehörige Impedanz (Ohm):
8 ohm
Programm Power (Watt)
280 W
Belastbarkeit:
140 W
Empfindlichkeit (dB):
110 dB
Frequenzbereich:
500 - 20000 Hz
Material Diaphragma:
Pure Titanium
Aufhängungsmaterial
Polymide
Aufhängungskonstruktion:
Flat
Minimale-Impedanz (Ohm):
8.50 ohm
Schwingspulendurchmesser:
4.0 inch / 102 mm
Schwingspulenträgermaterial:
Edgewound Aluminium
Bauform-/Material vom Schwingspulenträger
Direct Drive Kapton
Layeranzahl:
1
Art von Schichten:
outside
Magnetische Flussdichte (T):
2.0 T
Phase Plug Design:
4 slot
Phase Plug Material
Aluminium
Magnet:
Neodymium
Voice Coil Demodulation Ring
Copper
Thiele - small parameters
Kraftfaktor (BL-Factor) (T x m):
17.60 T x m
Montagehinweise
Gesamtdurchmesser:
140 mm / 5.51 inches
Gesamthöhe:
60 mm / 2.36 inches
Befestigung:
4 x 6 mm threaded holes at 90°
Standardkonformität
Safety agency:
CE compliant
Größe
Gewicht:
2.72 kg / 6 lbs
Versandinformationen
Verpackung Höhe:
90 mm / 3.54 inches
Verpackung Breite:
195 mm / 7.68 inches
Verpackung Tiefe:
170 mm / 6.69 inches
Verpackungsgewicht:
2.87 kg / 6.33 lbs