Eighteen Sound |
18NTLW5000 |
18NTLW5000-8 |
ALT185000WF08NA - 022188N500 |
Cone driver |
Sold by piece |
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Brand Eighteen Sound |
Model 18NTLW5000 |
TLHP code 18NTLW5000-8 |
Manufacturer code ALT185000WF08NA - 022188N500 |
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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
95 dB SPL 1W / 1m average sensitivity
Dual 115mm (4.5 in) Tetracoil Aluminum Voice coil
4000 W program power handling
Ultra linear suspension behavior for excellent sound clarity
Symmetric flux density and inductance behaviour
Low noise forced air cooling design
Water repellent cone and epoxy coated plates
Suitable for vented, horn loaded and bandpass applications
The 18NTLW5000 is a 18 inch diameter next generation high performance subwoofer, specifically designed for high SPL very low frequency applications in either a reflex, bandpass or horn loaded configuration. For optimum results we recommend the usage of power amplifiers able to deliver 4000W program power without clipping.
The 18NTLW5000 uses Eighteen Sound proprietary Tetracoil technology, where two different, axially separated magnetic gaps and two inside-outside 4.5" diameter aluminum voice coils are wound on the same former and suspended evenly in the two magnetic gaps.
The Tetracoil design key advantages are:
1) a symmetric flux density versus displacement behavior, that minimizes the even distortion products;
2) a very symmetric and flat inductance curve;
3) the equivalent voice coil diameter of a 4.6" Tetracoil speaker is greater than 6". Consequently heat dissipation occurs over a larger surface area, driving AES power handling up to 1800 W.
18NTLW5000 design features include a large displacement suspension system which, in conjunction with a fiberglass reinforced, straight ribbed cone allows an ultra-linear piston action and provides full mechanical control across the entire working range.
In order to furtherly increase power handling and reduce power compression figure, a low density material air diffractor is placed into the backplate venting hole acting as a cooling system, increasing power handling capability and lowering the power compression figure.
18NTLW5000 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 membrane. In addition, magnetic structure metal plates coating is far more resistant than standard zinc coating to the corrosive effects of salts and oxidization.
General |
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Product type | Cone driver |
Brand | Eighteen Sound |
Reference | 18NTLW5000 |
Product code | ALT185000WF08NA - 022188N500 |
Informations |
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Nominal impedance | 8 ohm |
Dimensional category | 18 inch |
Frequency coverage type | Sub, Low |
Manufacturer sensitivity | 95 dB |
Calculated sensitivity | 94.27 dB |
Nominal power handling | 1800 W |
Max power handling | 4000 W |
Bandwidth | 30÷1800 Hz |
Fundamental parameters |
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Sd | 1156 cm² |
Mms | 295 gr |
Cms | 85 µm/N |
Le | 1.85 mH |
Re | 5.5 ohm |
BL | 31.3 T.m |
Small signal parameters |
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Fs | 32 Hz |
Qes | 0.33 |
Qms | 8.52 |
Qts | 0.32 |
Vas | 176 L |
Datas |
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Xmax | ±17.5 mm |
EBP | 97 Hz |
Zmin | 6.8 ohm |
Fs / Qts | 100 Hz |
Vas * Qts² | 18.03 L |
Calculated efficiency | 1.68 % |
Weight | ~12 kg |
Dimensions |
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Voice coil diameter | 4.5 inch |
Outside diameter | 462 mm |
Baffle cutout diameter | 416 mm |
Depth | 310 mm |
Front thickness | 26 mm |
Depth after front | 284 mm |
Shape & Materials |
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Front chape | Cylindrical |
Magnet type | Neodymium |
Basket masterial | Aluminium |
Winding material | Aluminium |
Surround material | Polycotton |
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.