Eighteen Sound |
12NW530 |
12NW530-8 |
ALT120530WF08NB |
Cone driver |
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Brand Eighteen Sound |
Model 12NW530 |
TLHP code 12NW530-8 |
Manufacturer code ALT120530WF08NB |
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Product type Cone driver |
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The 12NW530 low frequency neodymium transducer has been specifically developed for high power, low distortion, very compact subwoofer applications.
The transducer finds its main application on compact vented subwoofers as small as 40 liters. The neodymium magnet assembly developed by Eighteen Sound engineers assures high flux concentration, low power compression and excellent heat exchange, since the external magnet configuration is considerably more efficient than traditional under-pole magnet topology.
This results in high levels of force factor and power handling with an optimum power to weight ratio. A state-of-the-art Interleaved Sandwich Voice coil (ISV) copper wire voice coil provides high levels of thermal stability and durability.
The transducer incorporates Eighteen Sound DSS technology (Double Silicon Spider), in combination with a single roll highly damped surround, that has been designed to provide symmetric large signal behaviour throughout the whole working range, providing low harmonic distortion at different excitation levels.
The already low distortion and sound quality are further improved by properly positioned Single Demodulating Ring (SDR), that flattens impedance and phase curves helping a constant power transfer from the amplifier.
The deep profile curvilinear cone, created from a special high strength wood pulp, has been designed to achieve the best possible linearity.
The humidity repellent cone treatment significantly dampens bell mode resonances. A special coating applied to both the top and back plates makes the 12NW530 far more resistant to the corrosive effects of salts and oxidization.
96 dB SPL 1W / 1m average sensitivity
75 mm (3 in) ISV voice coil
500 W AES power handling
External neodymium magnet assembly
Double Silicon Spider (DSS) for improved excursion control and linearity
Single Demodulating Ring (SDR) for lower distortion
High excursion damped rubber roll surround
Specific for compact subwoofer usage
General |
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Product type | Cone driver |
Brand | Eighteen Sound |
Reference | 12NW530 |
Product code | ALT120530WF08NB |
Informations |
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Nominal impedance | 8 ohm |
Dimensional category | 12.5 inch |
Frequency coverage type | Low, Midbass, Midrange |
Manufacturer sensitivity | 96 dB |
Calculated sensitivity | 93.82 dB |
Nominal power handling | 500 W |
Max power handling | 800 W |
Bandwidth | 48÷3200 Hz |
Fundamental parameters |
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Sd | 530 cm² |
Mms | 93 gr |
Cms | 91 µm/N |
Le | 0.9 mH |
Re | 4.9 ohm |
BL | 19.7 T.m |
Small signal parameters |
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Fs | 55 Hz |
Qes | 0.38 |
Qms | 9.7 |
Qts | 0.37 |
Vas | 36 L |
Datas |
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Xmax | ±8 mm |
EBP | 145 Hz |
Zmin | 6.3 ohm |
Fs / Qts | 149 Hz |
Vas * Qts² | 4.93 L |
Calculated efficiency | 1.52 % |
Weight | ~4 kg |
Dimensions |
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Voice coil diameter | 3 inch |
Outside diameter | 315 mm |
Baffle cutout diameter | 282 mm |
Depth | 136 mm |
Front thickness | 11 mm |
Depth after front | 125 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.
* Frequency response curve of 12NW530 made on 50 lit. enclosure tuned @ 60hz in free field (4π) environment. Enclosure closes the rear of the driver. The thin line represents the 45 deg. off axis frequency response.
* Free air impedance magnitude curve.