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18 Sound ND1480
Art.Nr.: 18SND1480
18-Sound ND1480 HF Neodymium Treiber
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Hersteller:
Eighteensound
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18 Sound ND1480
SMALL SPECIFICATIONS
110 dB 1W / 1m average sensitivity 1,4 inch exit throat 3 inch voice coil diameter 200W continuous program power handling Pure Titanium diaphragm assembly Excellent thermal exchange Neodymium ring magnetic structure
The ND1480 high frequency compression driver has been designed for high level sound systems application. With a 1.4 inch exit throat, the ND1480 has been developed to match the XT1464 Constant Directivity Horn.
The titanium diaphragm is produced in house and has been developed to assure unmatched transient response. The diaphragm assembly is made by joining the former directly to the titanium dome on its upper bend edge. In comparison with a usual straight former joint, the driver’s design assures extended frequency energy transfer for improved response linearity and unparallel reliability. This feature facilitates proper motion control of the dome in real working conditions. A proprietary treated Nomex former is used as Nomex shows a 30% higher value of tensile elongation at a working operative temperature (200°C) when compared to Kapton. Moreover, this proprietary former material is also suitable for use in higher moisture content environments.
The ND1480 powerful neodymium magnet assembly has been designed to obtain 22KGauss in the gap for major benefits in transient response. The motor structure, throughout the precisely coherent phase plug with 3 circumferential slots and copper ring on the pole piece, reduces inductance effect and distortion. Four top plate air ducts have been 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 which leads to a lower power compression value.
Due to the increase in use of high power audio systems at outdoor events or in marine environments, the ability of equipment to perform properly under inclement weather conditions is a key feature of the Eighteen Sound philosophy. Hence, a special treatment is applied to the magnet and the top and back plates of the magnetic structure in order to make the driver more resistant to the corrosive effects of salts and oxidization. This treatment is more effective than any other treatment in use today.
SMALL SPECIFICATIONS
| GENERAL SPECIFICATIONS | |
| Throat Diameter | 35,5 mm (1,4 in) |
| Rated Impedance | 8 ohm |
| DC Resistance | 6,2 ohm |
| Minimum Impedance | 8 ohm at 3500 Hz |
| Le (at 1kHz) | 124 µH |
| Power handling | |
| Continuous Pink Noise (1) | 100 W above 1,2 kHz |
| Continuous Program (2) | 200 W above 1,2 kHz |
| Sensitivity(1W@1m) (3) | 110 dB |
| Frequency Range | 500 Hz ÷ 20 kHz |
| Recomm. Xover Frequency | above 800 Hz (12 dB/octave) |
| Diaphragm Material | Titanium |
| Voice Coil Diameter | 74,4 mm (2,93 in) |
| Voice Coil Winding Material | Edge-wound aluminum |
| Magnet Material | Neodymium |
| Flux Density | 2,2 T |
| BL Factor | 15,5 N/A |
| Polarity | Positive voltage on red terminal gives positive pressure in the throat |
| MOUNTING INFORMATIONS | |
| Overall diameter | 131 mm (5,1 in) |
| Mounting holes diameter | 4 M6 holes 90° at Ø102 mm (4 in) |
| Bolt circle diameter | 102mm (4 in) |
| Total depth | 62 mm (2,5 in) |
| Net weight | 3,1 Kg (6,98 lb) |
| Shipping weight | 3,3 Kg (7,25 lb) |
| CardBoard Packaging dimensions | 132x132x68 mm (5,2x5,2x2,7 in) |
The ND1480 high frequency compression driver has been designed for high level sound systems application. With a 1.4 inch exit throat, the ND1480 has been developed to match the XT1464 Constant Directivity Horn.
The titanium diaphragm is produced in house and has been developed to assure unmatched transient response. The diaphragm assembly is made by joining the former directly to the titanium dome on its upper bend edge. In comparison with a usual straight former joint, the driver’s design assures extended frequency energy transfer for improved response linearity and unparallel reliability. This feature facilitates proper motion control of the dome in real working conditions. A proprietary treated Nomex former is used as Nomex shows a 30% higher value of tensile elongation at a working operative temperature (200°C) when compared to Kapton. Moreover, this proprietary former material is also suitable for use in higher moisture content environments.
The ND1480 powerful neodymium magnet assembly has been designed to obtain 22KGauss in the gap for major benefits in transient response. The motor structure, throughout the precisely coherent phase plug with 3 circumferential slots and copper ring on the pole piece, reduces inductance effect and distortion. Four top plate air ducts have been 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 which leads to a lower power compression value.
Due to the increase in use of high power audio systems at outdoor events or in marine environments, the ability of equipment to perform properly under inclement weather conditions is a key feature of the Eighteen Sound philosophy. Hence, a special treatment is applied to the magnet and the top and back plates of the magnetic structure in order to make the driver more resistant to the corrosive effects of salts and oxidization. This treatment is more effective than any other treatment in use today.
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