18 -sound 15NLW9300 LF Neodymium Driver (8 ohm)

Beschrijving

Key features

• • 97 dB SPL 1W / 1m average sensitivity
  • 100 mm (4 in) Interleaved Sandwich Voice coil (ISV)
  • 800W AES power handling
  • External neodymium magnet assembly
  • Double Demodulating Rings (DDR) for lower distortion and improved heat dissipation
  • Weather protected cone and plates for outdoor usage
  • Improved dissipation via integrated heatsink
  • Ultra wide application range
  • Recommended for multiway systems and studio monitoring applications

Description

The 15NLW9300 is a low frequency loudspeaker which sets a new industry
standard in 15″ (380mm) neodymium 4″ voice coil high performance
transducers. The design has evolved from an extensive R&D program
carried out at Eighteen Sound, providing clean, undistorted LF
reproduction at very high SPL without damages.
The 15NLW9300 is intended mainly as woofer in extremely compact vented enclosures (65 – 130lit).
The
neo magnet assembly assures high flux concentration, low power
compression and excellent heat exchange, resulting in high levels of
force factor and power handling with an optimum power to weight ratio.
The
diecast aluminum heatsink has been specifically studied using F.E.A.
simulators and the necessary heat transfer to the dissipative structure
has been improved. The direct contact between the heatsink and the
basket represents a fundamental improvement in heat dissipation,
increasing power handling capabilities and lowering the power
compression figure.
The 15NLW9300 features a dedicated exclusive
carbon fibre reinforced straight ribbed cone, with a specific pulp
formulation containing damping fibres. The membrane is impregnated with
a proprietary resin mix in order to increase the cone bend performances
– up to 6 times better if compared with traditional celluloses pulp,
twice than glass fibre added pulps. The result is a very linear piston
action across the entire working range reducing breaking modes, and
makes the 15NLW9300 suitable for outdoor application.
The suspension
system has been designed to provide symmetric large signal behaviour
throughout the whole working range, providing low harmonic distortion
at different excitation levels.
The performances are further
improved by the proprietary Double Demodulating Rings technology (DDR),
designed to reduce dramatically the intermodulation and harmonic
distortion whilst improving the transient response.
The 100mm (4in)
copper clad aluminum wire Interleaved Sandwich Voice coil (ISV)
provides high levels of thermal stability and durability.