Eighteen Sound |
12NLW9300 |
12NLW9300-8 |
ALT129300WF08NA - 022128N110 |
Cone driver |
Sold by piece |
|
Brand Eighteen Sound |
Model 12NLW9300 |
TLHP code 12NLW9300-8 |
Manufacturer code ALT129300WF08NA - 022128N110 |
||
Product type Cone driver |
Sales packaging Sold by Piece |
|
If you want to purchase more than the quantity in stock, have a look at the supply time below :
Indicative average supply lead time: 11 weeks
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.
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
General |
|
Product type | Cone driver |
Brand | Eighteen Sound |
Reference | 12NLW9300 |
Product code | ALT129300WF08NA - 022128N110 |
Informations |
|
Nominal impedance | 8 ohm |
Dimensional category | 12.5 inch |
Frequency coverage type | Sub, Low, Midbass |
Manufacturer sensitivity | 97 dB |
Calculated sensitivity | 92.96 dB |
Nominal power handling | 800 W |
Max power handling | 1200 W |
Bandwidth | 45÷3200 Hz |
Fundamental parameters |
|
Sd | 531 cm² |
Mms | 82 gr |
Cms | 142 µm/N |
Le | 0.53 mH |
Re | 4.7 ohm |
BL | 17 T.m |
Small signal parameters |
|
Fs | 47 Hz |
Qes | 0.45 |
Qms | 5.5 |
Qts | 0.42 |
Vas | 56 L |
Datas |
|
Xmax | ±8 mm |
EBP | 104 Hz |
Zmin | 5.7 ohm |
Fs / Qts | 112 Hz |
Vas * Qts² | 9.88 L |
Calculated efficiency | 1.25 % |
Weight | ~6.2 kg |
Dimensions |
|
Voice coil diameter | 4 inch |
Outside diameter | 315 mm |
Baffle cutout diameter | 282 mm |
Depth | 153 mm |
Front thickness | 17 mm |
Depth after front | 136 mm |
Shape & Materials |
|
Front chape | Cylindrical |
Magnet type | Neodymium |
This system is only available for technical questions. For questions of prices, availability of products and deadline thank you to send your request by the contact page.
This product is under manufacturer's warranty. This warranty protect you for the manufacturing defaults. The warranty does not protect for abnormal use of the product.