Eighteen Sound |
12ND830 |
12ND830-4 |
ALT120830WF04NA - 022124N210 |
Cone driver |
Sold by piece |
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Brand Eighteen Sound |
Model 12ND830 |
TLHP code 12ND830-4 |
Manufacturer code ALT120830WF04NA - 022124N210 |
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Product type Cone driver |
Sales packaging Sold by Piece |
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This product is in the process of supply to be in stock.
Reserved on order
Indicative average supply lead time: 11 weeks
The 12ND830 finds its ideal application in compact reflex enclosures where a considerable amount of low frequencies and low distortion are required. Its optimum low weight makes it suitable for fixed installations or portable professional loudspeaker systems.
The neodymium magnet assembly developed by Eighteen Sound engineers assures a 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.
The direct contact between the large heat sink and the specially designed basket, together with the magnetic structure, represents a fundamental improvement in thermal connection and heat dissipation. The result is increased power handling capabilities and lower power compression.
The deep profile curvilinear cone, made from a special high strength wood pulp, has been designed to achieve the best possible linearity within its frequency range. The cone surround, made from linen material is highly resistant to aging and fatigue. The in-house developed cone treatment is fully water repellent and also gives a significant degree of rigidity to the cone.
The 75 mm Interleaved Sandwich Voice coil (ISV) assembly is wound on a strong fiberglas former which improves force transmission and thermal power handling.
A special coating applied to both the top and back plates makes the 12ND830 far more resistant to the corrosive effects of salts and oxidization.
The 12ND830 is a 300mm (12 in) neodymium Mid-bass transducer, and differs from the 12ND930 in the wire conception, offering a lighter speaker with a lower force factor.
99 dB SPL 1W / 1m average sensitivity
75 mm (3 in) Interleaved Sandwich Voice coil (ISV)
450 W AES power handling
Neodymium magnet assembly
Ideal for compact reflex enclosures and two-way systems
General |
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Product type | Cone driver |
Brand | Eighteen Sound |
Reference | 12ND830 |
Product code | ALT120830WF04NA - 022124N210 |
Informations |
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Nominal impedance | 4 ohm |
Dimensional category | 12.5 inch |
Frequency coverage type | Low, Midbass, Midrange |
Manufacturer sensitivity | 99 dB |
Calculated sensitivity | 98.76 dB |
Nominal power handling | 450 W |
Max power handling | 700 W |
Bandwidth | 53÷5000 Hz |
Fundamental parameters |
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Sd | 531 cm² |
Mms | 47 gr |
Cms | 162 µm/N |
Le | 0.96 mH |
Re | 2.8 ohm |
BL | 13.7 T.m |
Small signal parameters |
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Fs | 58 Hz |
Qes | 0.25 |
Qms | 6.48 |
Qts | 0.24 |
Vas | 63 L |
Datas |
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Xmax | ±6.5 mm |
EBP | 232 Hz |
Zmin | 3.8 ohm |
Fs / Qts | 242 Hz |
Vas * Qts² | 3.63 L |
Calculated efficiency | 4.73 % |
Weight | ~4 kg |
Dimensions |
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Voice coil diameter | 3 inch |
Outside diameter | 315 mm |
Baffle cutout diameter | 282 mm |
Depth | 140 mm |
Front thickness | 9 mm |
Depth after front | 131 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.