Eighteen Sound |
18LW1400 |
18LW1400-4 |
ALT181400WF04FA - 0221843110 |
Cone driver |
Sold by piece |
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Brand Eighteen Sound |
Model 18LW1400 |
TLHP code 18LW1400-4 |
Manufacturer code ALT181400WF04FA - 0221843110 |
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Product type Cone driver |
Sales packaging Sold by Piece |
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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 18LW1400 is an extended low frequency loudspeaker which sets an industry standard in 18" (460 mm) high performance transducers. It has been designed for use as a low bass or sub-woofer component, in either a reflex, bandpass or horn loaded configuration, in high power auditorium or arena loudspeaker systems.
The transducer provides clean, undistorted low frequency reproduction at very high sound pressure levels and is able to withstand high power levels without damage.
18LW1400 design features include a large displacement suspension system which, in conjunction with a carbon fiber reinforced, straight ribbed cone and the Double Silicon Spider (DSS), assure an ultra-linear piston action and provide full control across the entire working range. A 100mm copper voice coil based on Interleaved Sandwich Voice coil (ISV) technology increases this control, providing high levels of thermal stability and durability.
ISV technology is based on a high strength fiberglas former with half the coil wound on the outside and half on the inside and bonded together using unique high temperature resin adhesives. Hence, a balanced linear motor unit, exerting an exceptionally high force factor is achieved. The low distortion and unmatched sound quality of the 18LW1400 has been significantly improved by the Double Demodulating Rings (DDR) embedded in the pole piece of the magnetic structure.
These have been designed to dramatically reduce the intermodulation and harmonic distortion while improving the transient response. Excellent heat dissipation has been achieved from the special basket design which incorporates air channels between the basket and the magnetic top plate.
In addition, 8 air vents incorporated into the back plate are aligned with the voice coil to force air into the lower part of the gap. Maximum flux density in the gap is assured by the top and back plate design, resulting in a high BL factor.
18LW1400 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.
98 dB SPL 1W / 1m average sensitivity
100 mm (4 in) Interleaved Sandwich Voice coil (ISV)
1000W AES power handling
Double Silicon Spider (DSS) for improved excursion control and linearity
Double Demodulating Rings (DDR) for lower distortion
Improved heat dissipation via unique basket design and multiple backplate vents
Weather protected cone and plates for outdoor usage
Ideal for high SPL subwoofer designs
General |
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Product type | Cone driver |
Brand | Eighteen Sound |
Reference | 18LW1400 |
Product code | ALT181400WF04FA - 0221843110 |
Informations |
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Nominal impedance | 4 ohm |
Dimensional category | 18 inch |
Frequency coverage type | Sub, Low |
Manufacturer sensitivity | 98 dB |
Calculated sensitivity | 94.9 dB |
Nominal power handling | 1000 W |
Max power handling | 1400 W |
Bandwidth | 28÷2500 Hz |
Fundamental parameters |
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Sd | 1225 cm² |
Mms | 190 gr |
Cms | 141 µm/N |
Le | 1.5 mH |
Re | 3.6 ohm |
BL | 22.1 T.m |
Small signal parameters |
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Fs | 31 Hz |
Qes | 0.31 |
Qms | 6.6 |
Qts | 0.32 |
Vas | 210 L |
Datas |
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Xmax | ±9 mm |
EBP | 100 Hz |
Zmin | 4.8 ohm |
Fs / Qts | 97 Hz |
Vas * Qts² | 21.51 L |
Calculated efficiency | 1.94 % |
Weight | ~13.3 kg |
Dimensions |
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Voice coil diameter | 4 inch |
Outside diameter | 462 mm |
Baffle cutout diameter | 416 mm |
Depth | 215 mm |
Front thickness | 26 mm |
Depth after front | 189 mm |
Shape & Materials |
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Front chape | Cylindrical |
Magnet type | Ferrite |
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.