Eighteen Sound |
15NLW9500 |
15NLW9500-4 |
ALT159500WF04NA - 022154N140 |
Cone driver |
Sold by piece |
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Brand Eighteen Sound |
Model 15NLW9500 |
TLHP code 15NLW9500-4 |
Manufacturer code ALT159500WF04NA - 022154N140 |
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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 15NLW9500 is an extended low frequency loudspeaker which sets a new industry standard in 15" (380mm) neodymium 4" voice coil high performance transducers. The 15NLW9500 has remarkable 35Hz downwards extension with 96dB average sensitivity and achievable peak power levels of 7kW.
Extensive care has been taken in order to symmetries both mechanical and electromagnetic non linear behaviour. The transducer has been designed to cover the low frequency band in vented, bandpass and horn loaded configurations: the application range moves from studio monitors up to cinema subwoofers as well as professional sound reinforcing systems, where deep low frequencies are required. It can be used in enclosures from 90 liters in size upwards, with tuning frequencies of about 33Hz. Amplifier sizes of 700 to 1400W allow a maximum output from the loudspeaker with no risks for the speaker when properly used.
The neo magnet assembly assures high flux concentration, low power compression and excellent heat exchange. This results in high levels of force factor and power handling with an optimum power to weight ratio.
The heatsink has been specifically studied using F.E.A. simulators and the necessary heat transfer to the dissipative structure has been improved. The heatsink concept has been further improved by using an air-diffractor that offers high thermal capacity and has been designed to force air moved by the dust cap through the fins and cool it down. The direct contact between the heatsink and the basket, together with the magnetic structure, represents a fundamental improvement in heat dissipation, increasing power handling capabilities and lowering the power compression figure.
The carbon fiber reinforced, straight-sided ribbed cone has been adopted in order to enable the transducer to withstand high loading designs as well as high power peaks.
Maximum strength, smooth response and high displacement piston motion have been obtained using Double Silicon Spider technology (DSS) and a large excursion surround. The rubber suspension system has been designed to provide symmetric large signal behaviour throughout the whole working range, providing low harmonic distortion at different excitation levels.
96 dB SPL 1W / 1m average sensitivity
100 mm (4 in) Interleaved Sandwich Voice coil (ISV)
1000 W AES power handling
External neodymium magnet assembly
Double Silicon Spider (DSS) for improved excursion control and linearity
Double Demodulating Rings (DDR) for lower distortion and improved heat dissipation
Improved dissipation via onboard heatsink
Ideal for low distortion direct radiation subwoofers
General |
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Product type | Cone driver |
Brand | Eighteen Sound |
Reference | 15NLW9500 |
Product code | ALT159500WF04NA - 022154N140 |
Informations |
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Nominal impedance | 4 ohm |
Dimensional category | 15 inch |
Frequency coverage type | Sub, Low, Midbass |
Manufacturer sensitivity | 96 dB |
Calculated sensitivity | 94.71 dB |
Nominal power handling | 1000 W |
Max power handling | 1400 W |
Bandwidth | 42÷2000 Hz |
Fundamental parameters |
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Sd | 850 cm² |
Mms | 172 gr |
Cms | 129 µm/N |
Le | 0.58 mH |
Re | 2.7 ohm |
BL | 18.2 T.m |
Small signal parameters |
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Fs | 34 Hz |
Qes | 0.3 |
Qms | 7.84 |
Qts | 0.29 |
Vas | 147.5 L |
Datas |
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Xmax | ±9 mm |
EBP | 113 Hz |
Zmin | 3.68 ohm |
Fs / Qts | 117 Hz |
Vas * Qts² | 12.41 L |
Calculated efficiency | 1.86 % |
Weight | ~7 kg |
Dimensions |
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Voice coil diameter | 4 inch |
Outside diameter | 387 mm |
Baffle cutout diameter | 353 mm |
Depth | 177 mm |
Front thickness | 24 mm |
Depth after front | 153 mm |
Shape & Materials |
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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.