Eighteen Sound |
10NMBA520 |
10NMBA520-8 |
ALT100520WF08NA |
Cone driver |
Sold by piece |
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Brand Eighteen Sound |
Model 10NMBA520 |
TLHP code 10NMBA520-8 |
Manufacturer code ALT100520WF08NA |
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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 10NMBA520 is the evolution of the 10NDA520. The transducer is a 10" mid-bass transducer created for compact reflex 2-way enclosures, and when compared to 10NDA520 shows 1 dB increased sensitivity over all operative frequency range, as well as 600 Watts program power handling. It can be used in mid-low sections on line-array systems and everywhere very high quality mid-bass frequency range reproduction is needed.
The 10NMBA520 incorporates Active Impedance Control technology (AIC), consisting of an additional coil fixed on the pole piece and connected in parallel to the moving coil.
The magnetic field generated by AIC coil has the following effects:
1) Impedance linearization
2) Acoustic and electric phase linearization
3) Significant increase of sensitivity and total SPL
4) Total harmonic distortion reduction
5) Constant power transfer
By not absorbing the moving coil's electromagnetic energy, the AIC offers substantial advantages to the sound quality.
The external neodymium magnet assembly assures high flux concentration, low power compression and excellent heat exchange. The curvilinear cone, specified with a high damping wood pulp has been designed to achieve the best possible linearity within its frequency range.
The 65 mm (2,5 in) diameter aluminum voice coil is wound on a strong fiberglas former in order to improve force transmission and power handling.
A special coating applied to both the top and back plates makes the 10NMBA520 far more resistant to the corrosive effects of salts and oxidization.
100,5 dB SPL 1W / 1m average sensitivity (AIC on)
65 mm (2,5 in) Interleaved Sandwich Voice coil (ISV)
300 Watt AES power handling
Neodymium motor assembly
AIC (Active Impedance Control) secondary voice coil for superior intelligibility, very low distortion and inductance linearization
Suitable for high quality two way compact systems
General |
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Product type | Cone driver |
Brand | Eighteen Sound |
Reference | 10NMBA520 |
Product code | ALT100520WF08NA |
Informations |
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Nominal impedance | 8 ohm |
Dimensional category | 10.5 inch |
Frequency coverage type | Low, Midbass, Midrange |
Manufacturer sensitivity | 100.5 dB |
Calculated sensitivity | 97.62 dB |
Nominal power handling | 300 W |
Max power handling | 600 W |
Bandwidth | 60÷7000 Hz |
Fundamental parameters |
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Sd | 350 cm² |
Mms | 28 gr |
Cms | 255 µm/N |
Le | 0.01 mH |
Re | 5 ohm |
BL | 14.6 T.m |
Small signal parameters |
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Fs | 60 Hz |
Qes | 0.24 |
Qms | 4.2 |
Qts | 0.23 |
Vas | 42 L |
Datas |
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Xmax | ±4 mm |
EBP | 250 Hz |
Zmin | 6.3 ohm |
Fs / Qts | 261 Hz |
Vas * Qts² | 2.23 L |
Calculated efficiency | 3.63 % |
Weight | ~3 kg |
Dimensions |
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Voice coil diameter | 2.5 inch |
Outside diameter | 260 mm |
Baffle cutout diameter | 232 mm |
Depth | 104 mm |
Front thickness | 14 mm |
Depth after front | 90 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 10NMBA520 (aic on) made on 30 lit. enclosure tuned at 55 hz in free field (4π) environment. Enclosure closes the rear of the driver. The thin line represents 45 deg. off axis frequency response.
* Free air impedance magnitude curve.
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.