B&C Speakers |
21DS115 |
21DS115-8 |
ALT21DS1158 |
Cone driver |
Sold by piece |
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Brand B&C Speakers |
Model 21DS115 |
TLHP code 21DS115-8 |
Manufacturer code ALT21DS1158 |
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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 :
Next TLHP reception estimated between Jul 13, 2024 and Jul 20, 2024
This next evolution subwoofer uses a new, longer, four layer aluminum voice coil. The result is more energy in the gap, higher sensitivity, lower distortion and better overall performance.
3400 W continuous program power capacity
116 mm (4.5 in) four layer aluminum voice coil
30 - 1000 Hz response
99 dB sensitivity
60 mm peak-to-peak excursion before damage
Neodymium magnet allows a very high force factor and linear excursion
Double silicone spider with optimized compliance
Ventilated voice coil gap for reduced power compression
Aluminium demodulating ring for very low distortion
The 21DS115 features a 36 mm long, 4.5 inch diameter (116mm) Copper Clad Aluminum Wire voice coil. With a 1700watt AES power rating, 99 dB sensitivity, and over 17 mm of Xvar, this high energy subwoofer is a significant step forward from similar models in the B&C range, even approaching the performance of our 6" voice coil alternatives.
General |
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Product type | Cone driver |
Brand | B&C Speakers |
Reference | 21DS115 |
Product code | ALT21DS1158 |
Informations |
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Nominal impedance | 8 ohm |
Dimensional category | 21 inch |
Frequency coverage type | Sub, Low |
Manufacturer sensitivity | 99 dB |
Calculated sensitivity | 96.65 dB |
Nominal power handling | 1700 W |
Bandwidth | 30÷1000 Hz |
Fundamental parameters |
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Sd | 1680 cm² |
Mms | 407 gr |
Le | 4.6 mH |
Re | 5.1 ohm |
BL | 40.8 T.m |
Small signal parameters |
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Fs | 30 Hz |
Qes | 0.24 |
Qms | 10 |
Qts | 0.23 |
Vas | 269 L |
Datas |
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Xmax | ±15 mm |
Calculated Xmax | ±15.6667 mm |
EBP | 125 Hz |
Zmin | 6.5 ohm |
Fs / Qts | 130 Hz |
Vas * Qts² | 14.24 L |
Efficiency | 3 % |
Calculated efficiency | 2.91 % |
Weight | ~14.8 kg |
Demodulation ring | Yes |
Recommended load volume | 130 L |
Fréquence d'accord liée à la charge | 40 Hz |
Dimensions |
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Voice coil diameter | 4.5 inch |
Winding depth | 36 mm |
Gap height | 14 mm |
Outside diameter | 547 mm |
Baffle cutout diameter | 508 mm |
Front thickness | 13 mm |
Depth after front | 242 mm |
Shape & Materials |
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Front chape | Cylindrical |
Magnet type | Neodymium |
Basket masterial | Aluminium |
Winding material | Aluminium |
Voice coil former | Glass fiber |
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.