Eighteen Sound |
8M400F |
8M400F-8 |
ALT080400WF08FG - 02208874F0 |
Cone driver |
Sold by piece |
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Brand Eighteen Sound |
Model 8M400F |
TLHP code 8M400F-8 |
Manufacturer code ALT080400WF08FG - 02208874F0 |
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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
Next TLHP reception estimated between Jul 30, 2024 and Aug 6, 2024
The 8M400F is a high power, high output, 200 mm (8 in) midrange for high level professional use.
The excellent sound quality has been achieved as a result of extensive research on mid frequencies intelligibility. The 8M400F has been designed for use as a midrange in both horn and direct radiation, closer or reflex enclosures, as small as 3 lt. The curvilinear cone, made with a high damping wood pulp, has been designed to achieve the best possible linearity within its frequency range. The in-house developed cone treatment is a humidity repellent and also
dampens the bell mode resonance significantly. The 51 mm (2 in) ISV aluminum voice coil assembly is wound on a strong fiberglas former to improve force transmission and power handling. ISV technology is based on a high strength fiberglas former with half the coil wound on the outside and half on the inside and bonded together using unique high temperature resin adhesives. The powerful magnet assembly assures high flux concentration. The force factor and
power handling are at an optimum level. The direct contact between the finned basket and the magnetic structure significantly improves thermal connection and heat dissipation, further increasing power handling and lowering power compression. The copper shorting ring on the pole piece reduces inductance and improves transient response and phase control in the mid frequencies.
General |
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Product type | Cone driver |
Brand | Eighteen Sound |
Reference | 8M400F |
Product code | ALT080400WF08FG - 02208874F0 |
Informations |
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Nominal impedance | 8 ohm |
Dimensional category | 8.5 inch |
Frequency coverage type | Fullrange |
Manufacturer sensitivity | 100.5 dB |
Calculated sensitivity | 97.22 dB |
Nominal power handling | 250 W |
Max power handling | 320 W |
Bandwidth | 200÷9000 Hz |
Fundamental parameters |
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Sd | 227 cm² |
Mms | 16.9 gr |
Cms | 192 µm/N |
Le | 0.07 mH |
Re | 5.1 ohm |
BL | 13.1 T.m |
Small signal parameters |
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Fs | 89 Hz |
Qes | 0.28 |
Qms | 4.03 |
Qts | 0.26 |
Vas | 13.7 L |
Datas |
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Xmax | ±3 mm |
EBP | 318 Hz |
Zmin | 6.5 ohm |
Fs / Qts | 342 Hz |
Vas * Qts² | 0.93 L |
Calculated efficiency | 3.32 % |
Weight | ~4.9 kg |
Dimensions |
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Voice coil diameter | 2 inch |
Outside diameter | 210 mm |
Baffle cutout diameter | 186 mm |
Depth | 106 mm |
Front thickness | 15 mm |
Depth after front | 91 mm |
Diamètre aimant (mm) | 156 mm |
Shape & Materials |
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Front chape | Cylindrical |
Magnet type | Ferrite |
Basket masterial | Aluminium |
Winding material | Aluminium |
Voice coil former | Glass fiber |
Surround shape | Accordion |
Surround material | Cloth |
Cone shape | Curvilinear |
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.