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18 SOUND ND1460A
18 Sound ND1460A Neodymium High Frequency Driver
 
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Product Code: 18-SOUND-ND1460A
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Description
 

18 Sound ND1460A 1.4" Neodymium High Frequency Driver

Size: 1.4" inch exit
Power Rating: 80W AES
Frequency Response: 500-20kHz
Sensitivity: 110db
Impedance: 8 ohms
Voice Coil: 3"
Diaphragm: Aluminum Polyethylene
Weight: 7 lbs.

Bolt-on only.

The ND1460A 1.4-inch exit neodymium HF compression driver has been designed for high level sound systems application. The diaphragm assembly is composed by an aluminum dome sandwiched to a proprietary treated polyester suspension. This design maintains low resonance and lowers the minimum crossover point value at 800Hz. The composite diaphragm assembly is made by an aluminum dome strongly joined to the PEN suspension, in order to assure unmatched transient response. The lower density of the aluminum and PEN structure permits higher levels of sensitivity, especially in the mid-high frequency range. A bended former edge-wound aluminum 75mm voice coil completes the diaphragm assembly.

The proprietary treated Nomex former material shows 30% higher value of tensile elongation at working operative temperature (200°C) when compared to Kapton. Moreover, Nomex is suitable to work also in higher moisture contents environments. The bended former is jointed in a sandwich configuration between PEN suspension and the aluminum dome, assuring extended frequency energy transfer for improved response linearity and unparallel reliability. Through careful use of elementary pieces of neodymium magnets, Eighteen Sound engineers have developed a powerful neodymium magnet assembly able to reach 19 KGauss in the gap in a compact and lightweight structure.

The motor structure, throughout the precisely coherent phase plug with 3 circumferential slots and copper ring on the pole piece, reduces inductance effects and distortion. Four top plate air ducts were designed to act as a loading chamber for the diaphragm, implementing mid band distortion and response figures. The custom designed O-ring creates a tight seal between the plate and the cover assuring air chamber loading. Excellent heat dissipation and thermal exchange are guaranteed by the direct contact between the magnetic structure and the aluminum cover that allows to obtain a lower power compression value. The ability to perform properly under inclement weather conditions is a key-point of Eighteen Sound philosophy. The special coating applied to the magnet and the top and back plates of the magnetic structure makes the ND1460A compression driver resistant to the corrosive effects of salts and oxidization.
More information here.
Features
  • 110 dB 1W / 1m average sensitivity
  • 1.4 inch exit throat
  • 3-inch edgewound aluminum voice coil
  • 160 W continuous program power handling
  • Aluminum PEN diaphragm assembly
  • Neodymium magnetic structure
  • Excellent thermal exchange

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