18 Sound 18NLW9400 18" Subwoofer 2400 Watts
Description
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The 18NLW9400 is a 18" (460 mm) extended low frequency loudspeaker, designed for use as a low bass or subwoofer component, in vented or bandpass configuration.
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The loudspeaker design provides clean and undistorted LF reproduction at a very high SPL and enables the transducer to withstand high power levels without damage. For optimum results we recommend amplifiers able to deliver 2400 Watt program power.
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The high grade neodymium magnet assembly is able to resist to the most demanding environmental operative conditions. 18NLW9400 features include a large displacement suspension system which, in conjunction with a fiberglass reinforced, straight ribbed cone and the Eighteen Sound proprietary Double Silicon Spider (DSS) technology, allows an ultra-linear piston action and provides full mechanical control across the entire working range.
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The 100mm (4 in) copper round wire state-of-the-art voice coil, based on Interleaved Sandwich Voice coil (ISV) technology, provides high levels of thermal stability and durability.
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The ISV technology achieves a balanced linear motor unit exerting an exceptionally high force factor. This is realised through a high strength fiberglas former with half the coil wound half on the outside and half on the inside and bonded together using unique high-temperature resin adhesives. 18NLW9400 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.
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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.
Key Features
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98 dB SPL 1W / 1m average sensitivity
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100 mm (4 in) Interleaved Sandwich Voice coil (ISV)
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2400 Watt program power handling
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Fiberglass reinforced straight ribbed cone
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Double Silicon Spider (DSS) for increased excursion control and linearity
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High grade neodymium magnet assembly
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Recommended for subwoofer usage in compact vented or bandpass enclosures
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Weather protected cone and plates for outdoor usage
Specifications
| Nominal Diameter |
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| Rated Impedance |
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| AES Power |
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| Program Power |
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| Peak Power |
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| Sensitivity |
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| Frequency Range |
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| Power Compression @-10dB |
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| Power Compression @-3dB |
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| Power Compression @Full Power |
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| Max Recomm. Frequency |
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| Recomm. Enclosure Volume |
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| Minimum Impedance |
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| Max Peak To Peak Excursion |
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| Voice Coil Diameter |
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| Voice Coil winding material |
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| Suspension |
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| Cone |
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Thiele Small Parameters
| Fs |
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| Re |
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| Sd |
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| Qms |
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| Qes |
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| Qts |
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| Vas |
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| Mms |
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| BL |
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| Linear Mathematical Xmax |
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| Le (1kHz) |
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| Ref. Efficiency 1W@1m (half space) |
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Mounting information
| Overall diameter |
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| N. of mounting holes and bolt |
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| Mounting holes diameter |
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| Bolt circle diameter |
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| Front mount baffle cutout ø |
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| Rear mount baffle cutout ø |
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| Total depth |
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| Flange and gasket thickness |
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| Net weight |
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| Shipping weight |
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| Packaging Dimensions |
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