B&C Speakers 8FMB51 – 8" Ferrite Midbass 8Ω
Efficient and weatherproof midbass with 500W program power, 96.5 dB sensitivity and wide response – perfect for two-way systems with compact cabinet volume.
- 500 W program power
- 96.5 dB sensitivity
- 51 mm aluminum voice coil
- Frequency range: 67 – 4500 Hz
- Ferrite magnet with ventilated gap
- Water-resistant cone (impregnated paper cone)
Thiele/Small parameters
| Fs | 67 Hz |
| Qms | 3.07 |
| Qes | 0.31 |
| Qts | 0.28 |
| Vase | 20.7 dm³ |
| RE | 4.7 Ω |
| Smile | 0.48 mH |
| Bl | 11.3 Tm |
| MMS | 20.2g |
| Sd | 227 cm² |
| Xmax | 5.5mm |
| Xvar | 5mm |
| η₀ | 1.91% |
| EBP | 216 Hz |
Assembly & Dimensions
| Outer diameter | 225mm |
| Mounting holes | 187mm |
| Bolt circle | 210mm |
| Depth | 92mm |
| Weight | 3.4 kg |
| Shipping weight | 3.85 kg |
| Recommended box volume | 14 dm³ |
| Recommended tuning | 80Hz |
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