B&C 8NDL51 8-Inch Speaker Driver - 200W RMS, 16 Ohm

The B&C 8NDL51 8-Inch Low Freqency Driver boasts legendary B&C technology made with their famously critical quality control, allowing loudspeaker designs with appropriately scaled performance.

B&C 8NDL51 8-Inch Speaker Driver Features

- 50 mm (2 inch) copper voice coil
- 70 - 3000 Hz response
- 94 dB sensitivity
- Neodymium magnet allows a very light yet powerful motor assembly
- Shorting copper cap for extended HF response
- 400 W continuous program power capacity
- Waterproofed cone
- Ventilated voice coil gap for reduced power compression

B&C 8NDL51 8-Inch Speaker Driver Specifications

- Nominal Basket Diameter: 200 mm (8 inches)
- Nominal Impedance: 16 Ω
- Minimum Impedance: 12.0 Ω
- Continuous Power Rating: 200W
- Program Power: 400W
- Frequency Response: 70 - 3000 Hz
- Sensitivity (1W/1m): 94 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: 8.0 mm (0.31 inches)
- Flux Density: 1.05T
- Connection: Spade Terminals

Design:
- Surround shape: Double Roll
- Cone shape: Exponential
- Magnet material: Neodymium Inside Slug
- Spider: Single
- Pole design: Straight Pole
- Woofer cone treatment: TWP Waterproof Both Sides
- Recommended enclosure: 14.0 dm³ (0.49 ft³)
- Recommended tuning: 65 Hz

Parameters:
- Fs: 70 Hz
- Re: 10.6 Ω
- Qes: 0.51
- Qms: 5.88
- Qts: 0.47
- Vas: 13.4 dm³
- Sd: 220.0 cm²
- η₀: 0.9 %
- Xmax: ± 7.0 mm
- Xvar: ± 7.0 mm
- Mms: 26 g
- Bl: 15.2 Txm
- Le: 0.6 mH
- EBP: 137 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: 90 mm (3.5 inches)
- Flange and gasket thickness: 11 mm (0.4 inches)
- Air volume occupied by driver: 1.1 dm³
- Net weight: 1.8 kg