Eighteen Sound ND1050
Driver HF 1" con magnete in neodimio e bobina da 1,75", 100W program. Spedizione OMAGGIO!
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HF Neodymium Drive - Driver in neodimio
Key Features
- 110 dB SPL 1W / 1m average sensitivity
- 1 inch exit throat
- 44mm (1 3/4 inch) voice coil diameter
- 100 Watt program power handling
- Neodymium magnet structure
- Titanium dome over PEN suspension
- Ultra compact size - 75mm external diameter
- Proprietary phase plug design
- Ideal for multiple HF line arrays
Description
The ND1050 one inch exit high frequency compression driver is designed for high quality applications, where size is a critical issue. ND1050 high flux ultra compact magnetic assembly architecture, achieves the remarkable 1,9 Tesla value in the gap containing the external size in 75mm - 3 inches - making this HF driver a benchmark in its category. Equipped with Eighteen Sound proprietary Phase Plug architecture, the ultra compact ND1050 ensures a coherent wavefront at the horn entrance over all the working frequency range. The radial - tangerine phase plug design with short openings and high flare rate value assures low distortion and remarkable improvements in mid-high frequency reproduction. The transducer diaphragm assembly is composed of a titanium dome sandwiched to a proprietary treated polyester suspension. This design maintains low resonance and lowers the minimum crossover point value to 1.6kHz. An edge-wound aluminum voice coil, wounded on proprietary treated Nomex, completes diaphragm assembly. Thanks to its physical properties, the proprietary treated Nomex former shows 30% higher value of tensile elongation at working operative temperature (200°C) when compared to Kapton. Moreover, this material is suitable to work also in higher moisture contents environments. The ability to perform properly under inclement weather conditions is a key-point of the Eighteen Sound philosophy. The special treatment applied to the magnet and the top and back plates of the magnetic structure makes the driver more resistant to the corrosive effects of salts and oxidization than any other treatment used by other manufacturers.
General Specifications HF
| Throat Diameter | 25,4 mm (1 in) |
| Rated Impedance | 8 Ohm |
| D.C. Resistance | 5,3 Ohm |
| Minimum Impedance | 6,9 Ohm at 2000Hz |
| Le (1kHz) | 67 µH |
| AES Power | 50 W above 1,6 kHz |
| Program power (8) | 100 W above 1,6 kHz |
| Sensitivity (9) | 110 dB |
| Frequency Range | 1600Hz - 20kHz |
| Recomm. Xover Frequency | 1600Hz (12dB/oct slope) |
| Diaphragm material | Titanium - PEN |
| Voice Coil Diameter | 44,4 mm (1 3/4 in) |
| Voice Coil winding material | Edge-wound aluminum |
| Magnet material | Neodymium |
| Flux Density | 1,9 T |
| Bl Factor | 8,5 N/A |
| Polarity | Positive voltage on red terminal gives positive pressure in the throat |
Mounting information
| Overall diameter | 75 mm (3 in) |
| N. of mounting holes and bolt | 3 M5 holes 120° |
| Bolt circle diameter | 57 mm (2.2 in) |
| Total depth | 41 mm (1.6 in) |
| Net weight | 0,55 kg (1,21 lb) |
| Shipping weight | 0,6 Kg (1,32 lb) |
| Packaging Dimensions | 0,6 Kg (1,32 lb) |
