18 -sound ND 1460 High Frequency Neodymium Driver (8 of 16ohm)

Beschrijving

Key features

• • 109 dB 1W / 1m average sensitivity
  • 1,4 inch exit throat
  • 3 inch edgewound aluminum voice coil
  • 200 W continuous program power handling
  • Pure Titanium diaphragm assembly
  • Neodymium magnetic structure
  • Excellent thermal exchange

Description

The ND1460 1.4 inch exit neodymium high frequency compression driver
has been designed for use in high quality sound systems.
The
pure 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 using its upper bend
edge. In comparison with a usual straight former joint, the driver
design assures extended frequency energy transfer giving 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 high moisture content environments.
By
carefully using elementary pieces of neodymium magnets, Eighteen Sound
engineers have developed a powerful neodymium magnet assembly capable
of reaching 19KGauss in the gap in compact and lightweight structures.
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 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.
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 which increases the ND1460 resistance to the
corrosive effects of salts and oxidization. This treatment is more
effective than any other treatment in use today.