Speaker Beyma SM-118/N, 8 ohm, 18 inch
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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 |
Question about Beyma SM-118/N-8
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Repair Beyma SM-118/N-8
Informations Beyma SM-118/N-8
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.
All or a part of the characteristics displayed on this page are provided by the manufacturer, it is possible that some pieces of information are unavailable or wrong. In addition, the manufacturer may need to change the product specifications without notice at any time in order to improve the product, or to adapt his offer to the manufacturing and supply constraints.. We suggest you to contact us if you need further information, if you observe a mistake or if you wish to have confirmation about information.
Measures/Schemes Beyma SM-118/N-8
SPL vs Distorsion measure *
* On axis frequency response measured with loudspeaker standing on infinite baffle in anechoic chamber
Impedance measure
Simulation *
* Bass-reflex cabinet
Dimensions
