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RCF ND950 1.4, compression driver 1,4", 140 Watt RMS @ 8 Ohm

Vare: PAH0013535-000V000001608
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RCF ND950 1.4

Item and packaging with scratches and signs of usage

The ND950 1.4 is a ultra compact size, high performance, high power handling 4.0-inch diaphragm compression driver with a 1.4 inch exit throat. The high power neodymium magnet guarantee the perfect control of the dome assembly's moving mass. This leads to higher efficiency, better transient response and diminishes high frequency distortion modes. 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 ND950 1.4 features a 0.05 mm thick pure titanium dome in combination with a high strength Mylar suspension. The voice coil assembly is designed using a high strength, high temperature Kapton® voice coil former and edge wound copper clad aluminium wire. The ND950 1.4 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.

Features 4-inch Diaphragm, 1.4-inch Exit Throat / Pure Titanium Compression Driver 280W continuous program power handling Frequency range: 500Hz - 20kHz 4-slot optimized geometry phase plug Titanium diaphragm, Polymide surround Copper inductance ring for extended response The minimum size 4" driver available Nedymium magnet assembly

General Specifications Exit Throat Diameter: 35.5 / 1.4 mm/inch Rated Impedance: 8 Ohm Power handling capacity continuous program1: 280 W AES Power handling capacity AES2: 140 W AES Sensitivity: 110 dB Frequency Range: 500 Hz ÷ 20000 Hz Diaphragm Material: Pure titanium Suspension Material: Polymide Suspension Design: Flat Minimum Impedance: (at 3.5kHz) 8.5 Ohm Voice Coil Diameter: 100 / 4.0 mm/inch Voice Coil Material: Edgewound aluminium Voice Coil Former Design: Straight kapton Number of layers: 1 - outside BL Factor: 17.6 T · m Flux Density: 2.05 T Phase Plug Design: 4 slots Phase Plug Material: Aluminium Magnetics: Neodymium Voice Coil Demodulation: Copper ring

Mounting information Overall diameter: 146 / 5.7 mm/inch Overall height: 60 / 2.4 mm/inch Mounting 4 × 5 mm holes at 90°: 101.6 / 4.0 mm/inch Net weight: 3.3 / 7.1 kg/lbs


  • Producent: RCF
  • Size (Inches): 1,4
  • Effekt (watt): 140
  • Frekvensrespons fra (Hz): 500
  • Impedans (ohm): 8
  • Frekvensrespons på (Hz): 20.000
  • Følsomhed (dB): 110
  • Magnet: Neodymium
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