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.
RCF ND940
321,47 €
Tasse incluse
Spedito entro 5/7 Giorni
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.
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| 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 | Polyimide |
| Design della sospensione | Flat |
| Impedenza Minima (ohm) | 8.50 ohm |
| Diametro Bobina | 4.0 inch / 102 mm |
| Materiale di avvolgimento della bobina | Edgewound Aluminum |
| 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 | Aluminum |
| 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 | |
| Standard di sicurezza | CE compliant |
| Dimensioni / Peso | |
| Peso | 2.72 kg / 6 lbs |
| Informazioni di spedizione | |
| Altezza imballaggio | 79 mm / 3.11 inches |
| Larghezza imballaggio | 169 mm / 6.65 inches |
| Profondità imballaggio | 171 mm / 6.73 inches |
| Peso imballaggio | 2.87 kg / 6.33 lbs |
15129053
Scheda dati
- Pollici
- 1.4