Beyma |
15G40 |
15G40-8 |
115G48 |
Cone driver |
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Brand Beyma |
Model 15G40 |
TLHP code 15G40-8 |
Manufacturer code 115G48 |
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Product type Cone driver |
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This low frequency transducer is specially intended for the most demanding applications. Its design concept arises from the need of achieve a more resistant loudspeaker that matches the more and more power given by ultimate amplification systems.
High power handling: 700 WAES
High sensitivity: 97 dB
4" edgewound copper voice coil
Optimum winding length for increased linear excursion
Waterproof paper cone
CONEX spider for higher resistance and consistency
Extended controlled displacement: Xmax ± 9,5 mm
Designed for woofer applications
Almost every component of the speaker has been reconsidered: its voice coil has the benefits of an improved manufacturing process and the highest quality materials, while the dual spider configuration includes a nomex spider that maintains its compliance constant with the applied power. Moreover, the magnetic structure construction generates a symmetrical magnetic field and, at the same time, provides an efficient thermal path which contributes to heat dissipation. Furthermore, its parameters has been optimized to obtain an excellent bass response when used in small bass-reflex cabinets.
General |
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Product type | Cone driver |
Brand | Beyma |
Reference | 15G40 |
Product code | 115G48 |
Informations |
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Nominal impedance | 8 ohm |
Dimensional category | 15.5 inch |
Frequency coverage type | Sub, Low, Midbass |
Manufacturer sensitivity | 97 dB |
Calculated sensitivity | 95.13 dB |
Nominal power handling | 700 W |
Bandwidth | 40÷1500 Hz |
Fundamental parameters |
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Mms | 126 gr |
Cms | 133 µm/N |
Le | 2.7 mH |
Re | 5.9 ohm |
BL | 23.3 T.m |
Small signal parameters |
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Fs | 38 Hz |
Qes | 0.33 |
Qms | 8 |
Qts | 0.32 |
Vas | 128 L |
Datas |
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Xmax | ±9.5 mm |
Calculated Xmax | ±10.0833 mm |
EBP | 115 Hz |
Zmin | 7 ohm |
Fs / Qts | 119 Hz |
Vas * Qts² | 13.11 L |
Efficiency | 2.2 % |
Calculated efficiency | 2.05 % |
Weight | ~11.5 kg |
Dimensions |
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Voice coil diameter | 4 inch |
Winding depth | 23.5 mm |
Gap height | 10 mm |
Outside diameter | 388 mm |
Baffle cutout diameter | 352 mm |
Front thickness | 16 mm |
Depth after front | 155 mm |
Diamètre aimant (mm) | 228 mm |
Shape & Materials |
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Front chape | Cylindrical |
Magnet type | Ferrite |
Basket masterial | Aluminium |
Winding material | Copper |
Surround material | Cloth |
Dome material | Paper |
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 Beyma
From other manufacturer
* On axis frequency response measured with loudspeaker standing on infinite baffle in anechoic chamber
* Bass-reflex cabinet
* These losses are calculated from a five minutes AES power test applying band limited pink noise (25-1200 Hz). The loudspeaker is free-air standing.