B&C 8PS21 8-Inch Speaker Driver - 200W RMS, 8 Ohm, Spring Terminals

B&C 8PS21 8-Inch Speaker Driver Features

- 400 W continuous program power capacity
- 51 mm (2 inches) copper voice coil
- 70 - 3000 Hz response
- 94 dB sensitivity
- Shorting copper cap for extended HF response

B&C 8PS21 8-Inch Speaker Driver Specifications

- Nominal diameter: 200 mm (8 inches)
- Nominal impedance: 8 Ω
- Minimum impedance: 7.0 Ω
- Nominal power handling: 200 W
- Continuous power handling: 400 W
- Sensitivity (1W/1m): 94.0 dB
- Frequency range: 70 - 3000 Hz
- Voice coil diameter: 51 mm
- Winding material: Copper
- Former material: Kapton
- Winding depth: 16 mm
- Magnetic gap depth: 8 mm
- Flux density: 1.1 T
- Connection: Spring Terminals

Design:
- Surround shape: Double Roll
- Cone shape: Exponential
- Magnet material: Ferrite
- Spider: Single
- Pole design: T-Pole
- Woofer cone treatment: None
- Recommended enclosure: 34.0 dm³
- Recommended tuning: 73 Hz

Parameters:
- Resonance Frequency: 73 Hz
- Re: 5.4 Ω
- Qes: 0.36
- Qms: 4.2
- Qts: 0.33
- Vas: 14.0 dm³
- Sd: 220.0 cm²
- η₀: 1.5 %
- Xmax: ±5.0 mm
- Xvar: ±4.0 mm
- Mms: 23 g
- Bl: 12.6 Txm
- Le: 0.5 mH
- EBP: 202 Hz

Physical:
- Overall diameter: 225 mm (8.8 inches)
- Bolt circle diameter: 210 mm (8.3 inches)
- Baffle cutout diameter: 187.0 mm (7.4 inches)
- Depth: 91 mm (3.6 inches)
- Flange and gasket thickness: 11 mm (0.4 inches)
- Air volume occupied by driver: 1.2 dm³
- Net weight: 3.3 kg

Further Product Information Below

B & C 8PS21 Technical Drawing (PDF)