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18 Sound ND2060A
Art.Nr.: 18SND2060A
18-Sound ND2060A HF Neodymium Treiber
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Hersteller:
Eighteensound
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18 Sound ND2060A
SMALL SPECIFICATIONS
110 dB 1W/1m average sensitivity 2 inch exit throat 3 inch voice coil diameter 150 W continuous program power handling Pure Aluminum dome Neodymium magnetic structure Excellent thermal exchange
The ND2060A 2 inch exit neodymium HF compression driver has been designed for high quality sound systems application.
The ND2060A 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 800 Hz. 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. The unique ellipsoidal suspension shape has been designed to maintain 3rd harmonic distortion value lower than 0.05% over all working 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 joint 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.
For the increase in use of high power audio systems at outdoor events or in marine environments, the ability to perform properly under inclement weather conditions is a key-point. The special coating applied to the magnet and the top and back plates of the magnetic structure makes the ND2060A compression driver resistant to the corrosive effects of salts and oxidization.
SMALL SPECIFICATIONS
| GENERAL SPECIFICATIONS | |
| Throat Diameter | 50 mm (2 in) |
| Rated Impedance | 8 ohm |
| DC Resistance | 6,2 ohm |
| Minimum Impedance | 8 ohm at 3500 Hz |
| Le (at 1kHz) | 124 µH |
| Power handling | (800 ÷ 20000 Hz) |
| Continuous Pink Noise (1) | 75 W above 1,2 kHz |
| Continuous Program (2) | 150 W above 1,2 kHz |
| Sensitivity(1W@1m) (3) | 110 dB |
| Frequency Range | 500 Hz ÷ 20 kHz |
| Recomm. Xover Frequency | Above 800Hz (12 dB/oct slope) |
| Diaphragm Material | Pen - Aluminum |
| Voice Coil Diameter | 74,4 mm (2,93 in) |
| Voice Coil Winding Material | Edge-wound aluminum |
| Magnet Material | Neodymium |
| Flux Density | 1,9 T |
| BL Factor | 13,5 N/A |
| Polarity | Positive voltage on red terminal gives positive pressure in the throat |
| MOUNTING INFORMATIONS | |
| Overall diameter | 132,5 mm (5,22 in) |
| Mounting holes diameter | 4 M6 holes 90° at Ø102 mm (4 in) |
| Bolt circle diameter | 102mm (4 in) |
| Total depth | 99 mm (3,9 in) |
| Net weight | 3,6 kg (7,9 lb) |
| Shipping weight | 4 kg (8,8 lb) |
| CardBoard Packaging dimensions | 132x132x103 mm(5,2x5,2x4,1 in) |
The ND2060A 2 inch exit neodymium HF compression driver has been designed for high quality sound systems application.
The ND2060A 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 800 Hz. 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. The unique ellipsoidal suspension shape has been designed to maintain 3rd harmonic distortion value lower than 0.05% over all working 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 joint 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.
For the increase in use of high power audio systems at outdoor events or in marine environments, the ability to perform properly under inclement weather conditions is a key-point. The special coating applied to the magnet and the top and back plates of the magnetic structure makes the ND2060A compression driver resistant to the corrosive effects of salts and oxidization.
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