ND940 DRIVER
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
![](https://www.rcf.it/documents/20128/822473/000_ND940_singolo_gallery.png/8fbcf08a-9d44-8ed4-19cb-e53470089b0c?version=1.1&t=1636012998525&imagePreview=1)
![](https://www.rcf.it/documents/20128/822473/001_ND940_gallery.jpg/784032b2-9d6d-5940-e7f7-e36205ea8c61?version=1.1&t=1636013001060&imagePreview=1)
![](https://www.rcf.it/documents/20128/822473/000_ND940_singolo_gallery.png/8fbcf08a-9d44-8ed4-19cb-e53470089b0c?version=1.1&t=1636012998525&imagePreview=1)
![](https://www.rcf.it/documents/20128/822473/001_ND940_gallery.jpg/784032b2-9d6d-5940-e7f7-e36205ea8c61?version=1.1&t=1636013001060&imagePreview=1)
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.
Part number:
15100012
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