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B&C Speakers 8FW51 – 4 Ohm
8" midbass driver with ferrite magnet and aluminum basket. Developed for applications where compact format, high power handling and wide frequency response are required - e.g. two-way systems, monitors and custom builds.
Specifications
| Power endurance (AES) | 200W |
| Program effect | 400W |
| Impedance | 4 Ohms |
| Sensitivity | 97 dB (1W/1m) |
| Frequency range | 70 – 5000 Hz |
| Magnetic material | Ferrite |
| Basket material | Aluminum |
| Weight | ~5.3 kg |
Thiele/Small parameters
| Fs | 70Hz |
| RE | 3.2 Ohms |
| Qms | 7.00 |
| Qes | 0.32 |
| Qts | 0.30 |
| Smile | 0.5 mH |
| BL | 10.5 T·m |
| Xmax | ±6mm |
| Sd | 220 cm² |
| MMS | 30g |
| Vase | 18 liters |
| EBP | 219 Hz |
| Efficiency | 1.2% |
Measure
| Outer diameter | 225mm |
| Mounting holes | 187mm |
| Depth | 91mm |
| Front thickness | 9mm |
| Voice coil | 2" copper on Kapton |
| Magnet diameter | 165mm |
| Surround material | Textile |
| Conform | Not cylindrical |
Robust construction, high sensitivity and wide frequency response make the 8FW51 an excellent choice for compact speaker systems with demands for performance and reliability.