B&C 8CXN51 8-Inch Coaxial Driver - 250W RMS, 8 Ohm

B&C 8CXN51 8-Inch Coaxial Driver Features

- 500 W continuous program power capacity
- 100° nominal coverage
- 70 - 18000 Hz response
- 97 dB sensitivity
- Single Neodymium magnet assembly
- 20.1 mm (0.79-inch) HF unit exit diameter

B&C 8CXN51 8-Inch Coaxial Driver Specifications

- Nominal Basket Diameter: 210 mm (8.0 inches)
- Nominal Impedance: 8 Ω
- Minimum Impedance:
  - LF: 6.0 Ω
  - HF: 7.4 Ω
- Frequency Response: 70 - 18000 Hz
- Dispersion Angle: 100°
- Woofer Cone Treatment: WP Waterproof Front Side
- Magnet Material: Neodymium Ring
- Connection: Spade Terminals

Specifications for LF Unit:
- LF Sensitivity: 97.0 dB
- LF Nominal impedance: 8 Ω
- LF Nominal Power Handling: 250 W
- LF Continuous Power Handling: 500 W
- LF Voice Coil Diameter: 51 mm (2.0 inches)
- LF Winding Material: Aluminium
- LF Flux Density: 1.15 T
- Former Material: Glass Fibre
- Winding Depth: 17.0 mm (0.67 inches)
- Magnetic Gap Depth: 8.0 mm (0.31 inches)

Specifications for HF Unit:
- HF Sensitivity: 104.0 dB
- HF Nominal impedance: 8 Ω
- HF Nominal Power Handling: 50 W
- HF Continuous Power Handling: 100 W
- HF Voice Coil Diameter: 44 mm (1.7 inches)
- HF Winding Material: Aluminium
- HF Flux Density: 1.8 T
- Diaphragm material: Polyimide
- Recommended crossover: 1.8 kHz
- Inductance: 0.11 mH

Parameters:
- Fs: 68 Hz
- Re: 4.9 Ω
- Qes: 0.29
- Qms: 4.7
- Qts: 0.27
- Vas: 17.0 dm³
- Sd: 220.0 cm²
- η₀: 1.8 %
- Xmax: ± 6.0 mm
- Xvar: ± 6.0 mm
- Mms: 22.0 g
- Bl: 12.6 Txm
- Le: 0.9 mH
- EBP: 234 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: 111 mm (4.4 inches)
- Flange and gasket thickness: 10 mm (0.37 inches)
- Net weight: 2.6 kg

Further Product Information Below

B & C 8CXN51 (8 Ohm) Data Sheet (PDF)

B & C 8CXN51 Technical Drawing (PDF)