B&C 8BG51 8-Inch Speaker Driver - 250W RMS, 8 Ohm

The B&C 8BG51 8-Inch Speaker Driver boasts legendary B&C technology made with their famously critical quality control, allowing loudspeaker designs with appropriately scaled performance.

B&C 8BG51 8-Inch Speaker Driver Features

- 500W continuous program power capacity
- 51 mm (2 inch) copper voice coil
- 50 - 4000 Hz response
- 92 dB sensitivity
- Neodymium magnet allows a very light yet powerful motor assembly
- Shorting copper cap for extended HF response
- Ventilated voice coil gap for reduced power compression

B&C 8BG51 8-Inch Speaker Driver Specifications

- Nominal Basket Diameter: 200 mm (8 inches)
- Nominal Impedance: 8 Ω
- Minimum Impedance: 6.0 Ω
- Nominal Power Handling: 250 W
- Continuous Power Handling: 500 W
- Frequency Response: 50 - 4000 Hz
- Sensitivity (1W/1m): 92 dB
- Voice Coil Diameter: 51 mm (2.0 inches)
- Winding Material: Copper
- Former Material: Glass Fibre
- Winding Depth: 17 mm (0.65 inches)
- Magnetic Gap Depth: 8 mm (0.31 inches)
- Flux Density: 1.15 T
- Connection: Spade Terminals

Design:
- Surround shape: Roll
- Cone shape: Exponential
- Magnet material: Neodymium Inside Slug
- Spider: Single
- Pole design: T-Pole
- Woofer cone treatment: WP Waterproof Front Side
- Recommended enclosure: 19.0 dm³ (0.67 ft³)
- Recommended tuning: 49 Hz

Parameters:
- Fs: 52 Hz
- Re: 5.1 Ω
- Qes: 0.42
- Qms: 12.3
- Qts: 0.4
- Vas: 18 dm³
- Sd: 220.0 cm²
- η₀: 0.6 %
- Xmax: ± 6.5 mm
- Xvar: ± 8.0 mm
- Mms: 35 g
- Bl: 11.8 Txm
- Le: 0.5 mH
- EBP: 123 Hz

Physical:
- Overall diameter: 225 mm (8.8 inches)
- Bolt circle diameter: 210 mm (8.3 inches)
- Baffle cutout diameter: 187 mm (7.4 inches)
- Depth: 90 mm (3.5 inches)
- Flange and gasket thickness: 11 mm (0.43 inches)
- Air volume occupied by driver: 1.1 dm³
- Net weight: 1.8 kg