The ND2080 2-inch exit high frequency compression driver has been designed for high quality sound systems application. The titanium diaphragm is produced in house and has been developed to assure unmatched transient response.
Key Features
- 110 dB SPL 1W / 1m average sensitivity
- 2 inch exit throat
- 3 inch edgewound aluminum voice coil
- 200 W program power handling
- Pure Titanium diaphragm assembly
- Neodymium ring magnetic structure
- Excellent thermal exchange
Description
The ND2080 2-inch exit high frequency compression driver has been designed
for high quality sound systems application. 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 design assures extended frequency energy
transfer for improved response linearity and unparallel reliability. This
feature allows 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 ND2080
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 increasing 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 Eighteen Sound philosophy.
Hence, a special treatment is applied to the magnet and the top and back
plates of the magnetic structure making the driver more resistant to the
corrosive effects of salts and oxidization. This treatment is more effective
than any other treatment used by other manufacturers.
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 |
AES Power |
100 W above 1,2 kHz |
Program Power |
200 W above 1,2 kHz |
Sensitivity (@ 1W/1m)
|
110 dB |
Frequency Range |
50500 Hz ÷ 20 kHz |
Recomm. Xover Frequency |
800Hz 12 dB/octavetd>
|
Diaphragm Material |
Titanium |
Voice Coil Diameter |
75 mm (3 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 |
Thiele Small Parameters
Mounting information
Overall diameter |
131 mm (5,1 in) |
N. of mounting holes and bolt |
4 M6 holes 90° at Ø102 mm (4 in) |
Bolt circle diameter |
102mm (4 in) |
Total depth |
99 mm (3,9 in) |
Net weight |
3,4 kg (7,49 lb) |
Shipping weight |
3,3,5 kg (7,71 lb) |
CardBoard Packaging dimensions |
132x132x103 mm(5,2x5,2x4,1 in)td>
|