{"product_id":"rcf-nd940-exit-1-4-140w-rms-280w-program-110-db-500-20khz-titanium","title":"RCF ND940 Exit:1,4\" 140W rms, 280W program. 110 dB, 500-20KHz -Titanium","description":"\u003ch2\u003eRCF ND940 Exit:1,4\" 140W rms, 280W program. 110 dB, 500-20KHz -Titanium\u003c\/h2\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4.0 inch, Kapton former, edge wound aluminium voice coil\u003c\/li\u003e\n\u003cli\u003e280W continuous program power handling\u003c\/li\u003e\n\u003cli\u003eFrequency range: 500Hz - 20kHz\u003c\/li\u003e\n\u003cli\u003e4-slot optimized geometry phase plug\u003c\/li\u003e\n\u003cli\u003eTitanium diaphragm, Polyimide surround\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExit Throat Diameter: 1.4 inch \/ 36 mm\u003c\/li\u003e\n\u003cli\u003eRated Impedance: 8 ohm\u003c\/li\u003e\n\u003cli\u003eProgram Power (watt): 280 W\u003c\/li\u003e\n\u003cli\u003ePower Handling Capacity: 140 W\u003c\/li\u003e\n\u003cli\u003eSensitivity: 110 dB\u003c\/li\u003e\n\u003cli\u003eFrequency Range: 500 - 20000 Hz\u003c\/li\u003e\n\u003cli\u003eDiaphragm Material: Pure Titanium\u003c\/li\u003e\n\u003cli\u003eSuspension Material: Polyimide\u003c\/li\u003e\n\u003cli\u003eSuspension Design: Flat\u003c\/li\u003e\n\u003cli\u003eMinimum Impedance: 8.50 ohm\u003c\/li\u003e\n\u003cli\u003eVoice Coil Diameter: 4.0 inch \/ 102 mm\u003c\/li\u003e\n\u003cli\u003eVoice Coil Winding Material: Edgewound Aluminum\u003c\/li\u003e\n\u003cli\u003eVoice Coil Former Design: Direct Drive Kapton\u003c\/li\u003e\n\u003cli\u003eNumber of Layers: 1\u003c\/li\u003e\n\u003cli\u003eKind of Layers: Outside\u003c\/li\u003e\n\u003cli\u003eFlux Density: 2.0 T\u003c\/li\u003e\n\u003cli\u003ePhase Plug Design: 4 slot\u003c\/li\u003e\n\u003cli\u003ePhase Plug Material: Aluminum\u003c\/li\u003e\n\u003cli\u003eMagnetics: Neodymium\u003c\/li\u003e\n\u003cli\u003eVoice Coil Demodulation Ring: Copper\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThiele - Small Parameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBl Factor (Bl): 17.60 T × m\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOverall Diameter: 140 mm \/ 5.51 inches\u003c\/li\u003e\n\u003cli\u003eOverall Height: 60 mm \/ 2.36 inches\u003c\/li\u003e\n\u003cli\u003eMounting: 4 × 6 mm threaded holes at 90°\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStandard Compliance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSafety Agency: CE compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSize \/ Weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWeight: 2.72 kg \/ 6 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eShipping Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePackage Height: 79 mm \/ 3.11 inches\u003c\/li\u003e\n\u003cli\u003ePackage Width: 169 mm \/ 6.65 inches\u003c\/li\u003e\n\u003cli\u003ePackage Depth: 171 mm \/ 6.73 inches\u003c\/li\u003e\n\u003cli\u003ePackage Weight: 2.87 kg \/ 6.33 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"RCF","offers":[{"title":"Default Title","offer_id":48653406437570,"sku":"ND940","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/2631\/5568\/files\/ND940-1.jpg?v=1787601749","url":"https:\/\/shop.solotech.com\/products\/rcf-nd940-exit-1-4-140w-rms-280w-program-110-db-500-20khz-titanium","provider":"Solotech","version":"1.0","type":"link"}