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- B&C 21IPAL - 1 ohm - Woofer
B&C 21IPAL - 1 ohm - Woofer
- Details
- Additional Information
The B&C 21IPAL is a weather-proof pro audio 21" woofer for music and car audio applications. Providing a monstrous 5000W of continuous power and paired with a neodymium magnet and waterproof cone, this is one beast of a driver.
Specifications | |
| Nominal diameter | 530 mm (21.0 in) |
| Nominal impedance | 1 Ω |
| Minimum impedance | 1.1 Ω |
| Nominal power handling1 | 2500 W |
| Continuous power handling2 | 5000 W |
| Sensitivity (1W/1m)3 | 99.0 dB |
| Frequency range | 37 - 1000 Hz |
| Voice coil diameter | 153 mm (6.0 in) |
| Winding material | Aluminium |
| Former material | Glass Fibre |
| Winding depth | 48 mm (1.9 in) |
| Magnetic gap depth | 18 mm (0.7 in) |
| Flux density | 1.35 T |
Design | |
| Surround shape | Triple Roll |
| Cone shape | Radial |
| Magnet material | Neodymium Inside Slug |
| Spider | Double Silicone |
| Pole design | T-Pole |
| Woofer cone treatment | TWP Waterproof Both Sides |
| Recommended enclosure | 200.0 dm3 (7.06 ft3) |
| Recommended tuning | 40 Hz |
Parameters4 | |
| Fs | 37 Hz |
| Re | 0.7 Ω |
| Qes | 0.22 |
| Qms | 4.9 |
| Qts | 0.21 |
| Vas | 155.0 dm3 (5.47 ft3) |
| Sd | 1680.0 cm2 (260.4 in2) |
| η₀ | 3.2 % |
| Xmax | 22.0 mm |
| Xvar | 15.0 mm |
| Mms | 487 g |
| Bl | 19.1 Txm |
| Le | 0.5 mH |
| EBP | 168 Hz |
Mounting And Shipping Info | |
| Overall diameter | 547 mm (21.5 in) |
| Bolt circle diameter | 527 mm (20.7 in) |
| Baffle cutout diameter | 508.0 mm (20.0 in) |
| Depth | 269 mm (10.59 in) |
| Flange and gasket thickness | 13 mm (0.51 in) |
| Air volume occupied by driver | 16.0 dm3 (0.56 ft3) |
| Net weight | 22.0 kg (48.5 lb) |
| Shipping units | 1 |
| Shipping weight | 24.5 kg (54.0 lb) |
| Shipping box | 590x590x300 mm (23.2x23.2x11.8 in) |
Service Kit | |
| RCK21IPAL |
