Beyma |
SM118/N |
SM-118/N-8 |
118SMN8 |
Cone driver |
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Brand Beyma |
Model SM118/N |
TLHP code SM-118/N-8 |
Manufacturer code 118SMN8 |
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Product type Cone driver |
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High power handling (400 w AES)
3" (77 mm.) copper voice coil with apical former
Optimum winding length for increased linear excursion
Extended response in the medium frequency range
Designed for high power woofer applications
The design concept of this low frequency transducer arises from the need of achieve a more resistant loudspeaker that matches the more and more power given by ultimate amplification systems. In order to accomplish that, almost every component of the speaker has been reconsidered. The SM-118/N incorporates a 3" voice coil made with high quality materials: copper round wire with high temperature bonding strength and apical former.
Moreover, it features a powerful magnet system with rear air ventilation. All these facts result in a 18" driver with extended and smooth low-mid frequency response, reduced harmonic distortion, good efficiency and excellent power handling (400 w AES). The SM-118/N is specially recommended for woofer applications.
General |
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Product type | Cone driver |
Brand | Beyma |
Reference | SM118/N |
Product code | 118SMN8 |
Informations |
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Nominal impedance | 8 ohm |
Dimensional category | 18 inch |
Frequency coverage type | Sub, Low |
Manufacturer sensitivity | 97 dB |
Calculated sensitivity | 96.06 dB |
Nominal power handling | 400 W |
Bandwidth | 30÷3000 Hz |
Fundamental parameters |
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Mms | 123 gr |
Le | 1.1 mH |
Re | 6.4 ohm |
Small signal parameters |
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Fs | 36 Hz |
Qes | 0.53 |
Qms | 6.83 |
Qts | 0.49 |
Vas | 300 L |
Datas |
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Xmax | ±5.5 mm |
EBP | 68 Hz |
Fs / Qts | 73 Hz |
Vas * Qts² | 72.03 L |
Efficiency | 2.5 % |
Calculated efficiency | 2.54 % |
Weight | ~8.8 kg |
Dimensions |
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Voice coil diameter | 3 inch |
Outside diameter | 460 mm |
Baffle cutout diameter | 415 mm |
Front thickness | 14.5 mm |
Depth after front | 169.5 mm |
Diamètre aimant (mm) | 180 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.
* On axis frequency response measured with loudspeaker standing on infinite baffle in anechoic chamber
* Bass-reflex cabinet