Description
18 Sound 15NLW4500 speaker, 8 ohm, 15 inch
The 15NLW4500 is a 15" extended low frequency loudspeaker, designed for use in vented, bandpass or even horn loaded ì enclosures. The loudspeaker is designed to withstand high power levels without damage while providing clean and undistorted LF reproduction at a very high SPL. For optimum results we recommend amplifiers able to deliver 3000 Watt program power. The 15NLW4500 features a unique motor featuring a high grade Neo magnet assembly in a structure optimized for thermal and magnetic efficiency. 15NLW4500 features include a large displacement suspension system which, in conjunction with a composite reinforced, straight ribbed cone and the Eighteen Sound proprietary SDR technology, allows an undiostorted ultra-linear piston action and provides full mechanical control across the entire working range. The 115mm (4.5 in) state-of-the-art voice-coil utilizing Interleaved Sandwich Voice coil (ISV) technology, provides high levels of thermal stability and durability. The ISV technology achieves a balanced linear motor unit exerting an exceptionally high force factor.
General |
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Product type | Cone driver |
Brand | Eighteen Sound |
Reference | 15NLW4500 |
Product code | ALT154500WF08NB |
Informations |
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Nominal impedance | 8 ohm |
Dimensional category | 15.5 inch |
Frequency coverage type | Sub, Low, Midbass |
Manufacturer sensitivity | 96.3 dB |
Calculated sensitivity | 94.31 dB |
Nominal power handling | 1500 W |
Max power handling | 3000 W |
Bandwidth | 40÷1000 Hz |
Fundamental parameters |
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Sd | 881 cm² |
Mms | 201 gr |
Cms | 104 µm/N |
Le | 1.62 mH |
Re | 5.4 ohm |
BL | 29.7 T.m |
Small signal parameters |
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Fs | 35 Hz |
Qes | 0.27 |
Qms | 7.8 |
Qts | 0.26 |
Vas | 111 L |
Datas |
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Xmax | ±14.5 mm |
EBP | 130 Hz |
Zmin | 6.7 ohm |
Fs / Qts | 135 Hz |
Vas * Qts² | 7.51 L |
Efficiency | 1.7 % |
Calculated efficiency | 1.7 % |
Weight | ~11.4 kg |
Dimensions |
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Voice coil diameter | 4.53 inch |
Outside diameter | 393 mm |
Baffle cutout diameter | 356 mm |
Depth | 199 mm |
Front thickness | 15 mm |
Depth after front | 184 mm |
Shape & Materials |
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Front chape | Cylindrical |
Magnet type | Neodymium |