B&C 8CX21 8-Inch Coaxial Driver - 200W RMS, 8 Ohm

B&C 8CX21 8-Inch Coaxial Driver Features

- 400 W continuous program power capacity
- 100° nominal coverage
- 75 - 20000 Hz response
- 94 dB sensitivity
- 34.5 mm (1.35-inch) HF unit exit diameter
- XO-1 dedicated crossover network

B&C 8CX21 8-Inch Coaxial Driver Specifications

- Nominal Basket Diameter: 210 mm (8.0 inches)
- Nominal Impedance: 8 Ω
- Minimum Impedance:
  - LF: 6.1 Ω
  - HF: 7.2 Ω
- Frequency Response: 75 - 20000 Hz
- Dispersion Angle: 100°
- Woofer Cone Treatment: WP Waterproof Front Side
- Magnet Material: Ferrite
- Connection: Spade Terminals

Specifications for LF Unit:
- LF Sensitivity: 94.0 dB
- LF Nominal impedance: 8 Ω
- LF Nominal Power Handling: 200 W
- LF Continuous Power Handling: 400 W
- LF Voice Coil Diameter: 52 mm (2.0 inches)
- LF Winding Material: Copper
- LF Flux Density: 1.1 T
- Former Material: Kapton
- Winding Depth: 16.0 mm (0.63 inches)
- Magnetic Gap Depth: 8.0 mm (0.31 inches)

Specifications for HF Unit:
- HF Sensitivity: 101.0 dB
- HF Nominal impedance: 8 Ω
- HF Nominal Power Handling: 25 W
- HF Continuous Power Handling: 50 W
- HF Voice Coil Diameter: 36 mm (1.4 inches)
- HF Winding Material: Aluminium
- HF Flux Density: 1.45 T
- Diaphragm material: Polyester
- Recommended crossover: 2.2 kHz
- Inductance: 0.14 mH

Parameters:
- Fs: 74 Hz
- Re: 5.2 Ω
- Qes: 0.39
- Qms: 4.1
- Qts: 0.36
- Vas: 15.0 dm³
- Sd: 220.0 cm²
- η₀: 1.5 %
- Xmax: ± 5.0 mm
- Xvar: ± 5.5 mm
- Mms: 21.0 g
- Bl: 11.5 Txm
- Le: 1.2 mH
- EBP: 189 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: 135 mm (5.3 inches)
- Flange and gasket thickness: 11 mm (0.4 inches)
- Net weight: 4.1 kg

Further Product Information Below

B & C 8CX21 (8 Ohm) Data Sheet (PDF)

B & C 8CX21 Technical Drawing (PDF)