RCF ND940 140W AES 1.4 inch Compression Driver 8 Ohm
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RCF
RCF ND940 140W AES 1.4" Compression Driver 8 Ohm

 
Product Code: RCFND940 | Brand: RCF
RCF ND940 140W AES 1.4 inch Compression Driver 8 Ohm

RCF ND940 140W AES 1.4 inch Compression Driver 8 Ohm RCF ND940 140W AES 1.4 inch Compression Driver 8 Ohm RCF ND940 140W AES 1.4 inch Compression Driver 8 Ohm 
£247.70
£206.42 ex VAT
2-3 £243.99 ea.4-7 £241.51 ea.8+ £237.80 ea.
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Usually available in <br>6-8 weeks
Usually available in
6-8 weeks
£9.21 DELIVERY to mainland UK.
RCF ND940 140W AES 1.4" Compression Driver 8 Ohm

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.


Applications:


With a wide frequency response range (500 Hz - 20.000 Hz) and 280 Watt power handling, the ND940 is the ideal driver for heavy duty professional applications.


Main Features:


  • 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

General Specifications
Exit Throat Diameter: 35.5 / 1.4 mm/inch
Rated Impedance: 8 Ω
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: Polyimide
Suspension Design: Flat
Minimum Impedance: (at 3.5kHz) 8.0 Ω
Voice Coil Diameter: 100 / 4.0 mm/inch
Voice Coil Material: Edgewound aluminium
Voice Coil Former Design: Direct Drive Kapton
Number of layers: 1 - outside
BL Factor: 16 T · m
Flux Density: 1.9 T
Phase Plug Design: 4 slots
Phase Plug Material: Aluminium
Magnetics: Neodymium
Voice Coil Demodulation: Copper ring
Mounting information
Overall diameter: 140 / 5.2 mm/inch
Overall height: 54 / 2.1 mm/inch
Mounting 4 × 5 mm holes at 90°: 101.6 / 4.0 mm/inch
Net weight: 3 / 6.4 kg/lbs
Shipping information
Shipping weight: 3.3 / 7.1 kg/lbs
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UK & ROI
Delivery Info for RCF ND940 140W AES 1.4 inch Compression Driver 8 Ohm  to locations within the United Kingdom and Ireland
EUROPE
Delivery Info for RCF ND940 140W AES 1.4 inch Compression Driver 8 Ohm  to locations in Europe