18 -sound 12NLW9300 LF Neodymium Driver (8 ohm)

Beschrijving

Key features

• • 97 dB SPL 1W / 1m average sensitivity
  • 100 mm (4in) 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 onboard heatsink
  • Recommended for two way and multiway systems

Description

The 12NLW9300 is a high performance low frequency neodymium
loudspeaker. It is intended mainly as woofer for two way systems and
works extremely well in compact vented enclosures (30 – 70 lit).
The
neo magnet external assembly assures high flux concentration, low power
compression and excellent heat exchange. The external magnet
configuration is considerably more efficient than the traditional
under-pole magnet topology. This allows to obtain high levels of force
factor and power handling with a power to weight ratio at the upper
level.
The heatsink has been specifically studied according to
F.E.A. simulators, improving the necessary heat transfer to the
dissipative structure. The direct contact between the heat sink and the
specially designed basket, together with the magnetic structure,
represents a fundamental improvement in heat dissipation, increasing
power handling capabilities and lowering power compression figure.
A
state-of-the-art Interleaved Sandwich Voice coil (ISV) voice coil
provides high levels of thermal stability and durability. The ISV
technology is based on a high strength fiberglass former with half the
coil wound on the outside and half on the inside ensuring uniform
thermal dissipation on both sides, bonded together using unique high-
temperature resin adhesives achieving a balanced and solid linear motor
unit.
The 12NLW9300 performances are further improved by the use of
Double Demodulation Rings (DDR), designed to reduce dramatically the
intermodulation and harmonic distortion whilst improving the transient
response.
The 12NLW9300 design features a dedicated exclusive Carbon
fibre reinforced straight ribbed cone; the pulp formulation contains
special damping fibres and is further treated in-house with a
proprietary resin compound in order to increase the cone bend
performances 5 times more than traditional celluloses pulp and twice
than glass fibre added pulps. The result is a very linear piston action
across the entire working range minimizing the destroying breaking
modes.
The coating of both the face and back plates is far more
resistant to the corrosive effects of salts and oxidization than any
other treatment normally in use.