MOTEUR À COMPRESSION PROFESSIONNEL 1.4" 280W RCF

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 CARACTÉRISTIQUES 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. Diamètre de la gorge de sortie : 1.4 inch / 36 mm Impédance relative (Ohm) : 8 ohm Tension du programme (Watt) : 280 W Capacité de tension : 140 W Sensibilité (dB) : 110 dB Gamme en fréquences : 500 - 20000 Hz Matériau de la membrane : Pure Titanium Matériaux des suspensions : Polymide Conception des suspensions : Flat Impédance minimale (Ohm) : 8.50 ohm Diamètre de la bobine mobile : 4.0 inch / 102 mm Matériau de l’enroulement de la bobine mobile: Edgewound Aluminium Ancienne conception de la bobine mobile : Direct Drive Kapton Nombre de couches : 1 Type de couches : outside Densité du flux (T) : 2.0 T Conception de la prise de phase : 4 slot Matériaux de la prise de phase : Aluminium Magnétiques : Neodymium Anneau de démodulation de la bobine mobile Copper