Eighteen Sound |
8MB400 |
8MB400-8 |
ALT080400WF08FC |
Cone driver |
Sold by piece |
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Brand Eighteen Sound |
Model 8MB400 |
TLHP code 8MB400-8 |
Manufacturer code ALT080400WF08FC |
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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 8MB400 mid-bass transducer has been developed in response to a specific market requirement for a 200 mm (8 in) midbass driver which combines excellent linearity with good efficiency and power handling capabilities.
It is primarily intended for use as a midbass driver in compact 2-way reflex enclosures with a 1 inch compression driver or tweeter but as a result of its versatile characteristics, it can also be used in multiway systems.
The curvilinear, treated paper cone is formed using a unique wood pulp composition designed to achieve the best possible rigidity and stiffness.
This is carried by a polycotton multiroll surround to provide increased excursion whilst controlling break up modes.
The 50 mm (2 inch) aluminum wire voice coil employs same Interleaved Sandwich Voice coil (ISV) technology. It is composed of a high strength fiberglas former carrying windings on both the outer and inner surfaces to achieve a mass balanced coil.
This results in an extremely linear motor assembly which, in conjunction with the highly advanced design of the magnetic structure, provides a high force factor or BL. The voice coil is cooled by incorporating airways between the chassis back plate and the magnetic top plate to channel heated air away from the voice coil and gap and dissipate it.
In-house FEA CAD facilities have been used to optimise flux density and BL factor within the air gap. Due to the increasing use of sound systems at outdoor events, the 8MB400 ability to perform in humid environments is a key feature. This has been achieved using an exclusive cone treatment which renders the cone resistant to humidity.
98 dB SPL 1W / 1m average sensitivity
51 mm (2 in) Interleaved Sandwich Voice coil (ISV)
280 Watt AES power handling
Improved heat dissipation via unique basket design
Weather protected cone
Suitable for compact two way and multiway systems
General |
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Product type | Cone driver |
Brand | Eighteen Sound |
Reference | 8MB400 |
Product code | ALT080400WF08FC |
Informations |
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Nominal impedance | 8 ohm |
Dimensional category | 8.5 inch |
Frequency coverage type | Midbass, Midrange, High midrange |
Manufacturer sensitivity | 95 dB |
Calculated sensitivity | 93.48 dB |
Nominal power handling | 280 W |
Max power handling | 400 W |
Bandwidth | 55÷5200 Hz |
Fundamental parameters |
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Sd | 227 cm² |
Mms | 18 gr |
Cms | 348 µm/N |
Le | 0.96 mH |
Re | 5 ohm |
BL | 9.3 T.m |
Small signal parameters |
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Fs | 64 Hz |
Qes | 0.43 |
Qms | 3.23 |
Qts | 0.38 |
Vas | 23.9 L |
Datas |
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Xmax | ±5.8 mm |
EBP | 149 Hz |
Fs / Qts | 168 Hz |
Vas * Qts² | 3.46 L |
Calculated efficiency | 1.4 % |
Weight | ~3.6 kg |
Dimensions |
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Voice coil diameter | 2 inch |
Outside diameter | 210 mm |
Baffle cutout diameter | 186 mm |
Depth | 99 mm |
Front thickness | 14 mm |
Depth after front | 85 mm |
Shape & Materials |
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Front chape | Cylindrical |
Magnet type | Ferrite |
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.
From Eighteen Sound
From other manufacturer
* Frequency response curve of 8MB400 made on 25 lit. enclosure tuned 65hz 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.