Data Sheet

18NLW9400
Extended Low Frequency Neo Transducer
Key Features
98 dB SPL 1W / 1m average sensitivity
100 mm (4 in) Interleaved Sandwich Voice coil (ISV)
2400 Watt program power handling
High grade neodymium magnet assembly
Double Silicon Spider (DSS) for increased excursion
control and linearity
Recommended for subwoofer usage in compact vented
or bandpass enclosures
Weather protected cone and plates for outdoor usage
General Description
The 18NLW9400 is a 18" (460 mm) extended low frequency
loudspeaker, designed for use as a low bass or subwoofer
component, in vented or bandpass configuration. The loudspeaker
design provides clean and undistorted LF reproduction at a very high
SPL and enables the transducer to withstand high power levels
without damage. For optimum results we recommend amplifiers able
to deliver 2400 Watt program power.
The high grade neodymium magnet assembly is able to resist to the
most demanding environmental operative conditions.
18NLW9400 features include a large displacement suspension
system which, in conjunction with a fiberglass reinforced, straight
ribbed cone and the Eighteen Sound proprietary Double Silicon
Spider (DSS) technology, allows an ultra-linear piston action and
provides full mechanical control across the entire working range.
The 100mm (4 in) copper round wire state-of-the-art voice coil,
based on Interleaved Sandwich Voice coil (ISV) technology, provides
high levels of thermal stability and durability. The ISV technology
achieves a balanced linear motor unit exerting an exceptionally high
force factor. This is realised through a high strength fiberglas
former with half the coil wound half on the outside and half on the
inside and bonded together using unique high-temperature resin
adhesives.
18NLW9400 is able to perform properly under inclement weather
conditions: the exclusive cone treatment improves pulp strength and
gives water repellent properties to both sides of the cone. In
addition, the special treatment applied to top and back plates of the
magnetic structure is far more resistant to the corrosive effects of
salts and oxidization.
022188N940 8ohm
022184N940 4ohm
R-KIT 027188N940 8ohm
R-KIT 027184N940 4ohm
NEODYMIUM LF-MB-MF TRANSDUCERS
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www.eighteensound.com