B&C Speakers 8NW51 Folheto

400 W continuous program  power capacity

50 mm (2 in) copper voice coil

70 – 3000 Hz response

96.5 dB sensitivity

Neodymium ring magnet assembly

Shorting copper cap for extended HF response

Ventilated voice coil gap for reduced power compression

Nominal Diameter

200 (8) mm (in)

Nominal Impedance (1)

8 Ohm

Minimum Impedence

7.7 Ohm

Nominal Power Handling (2)

200 W

Continuous  Power Handling (3)

400 W

Sensitivity (1W/1m) (4)

96.5 dB

Frequency Range

70 - 3000 Hz

Voice Coil Diameter

51 (2) mm (in)

Winding Material

Copper 

Former Material

Glass Fibre 

Winding Depth

18.5 (0.73) mm (in)

Magnetic Gap Depth

10 (0.4) mm (in)

Flux Density

1.3 T

Fs

74 Hz

Re

5.2 Ohm

Qes

0.19 

Qms

2.7 

Qts

0.17 

Vas

11 (0.4) dm3 (ft3)

Sd

220 (34.1) cm2 (in2)

Eta Zero

2.4 %

Xmax

+/- 6 mm

Xvar

+/- 6 mm

Mms

28 g

Bl

18.9 Txm

Le

0.4 mH

Overall Diameter

225 mm (8.8 in)

Bolt Circle Diameter

210 mm (8.3 in)

Baffle Cutout Diameter

187 mm (7.4 in)

Depth

100 mm (4 in)

Flange and Gasket Thickness

11 mm (0.4 in)

Net Weight

3 kg (6.6 lb)

Shipping Weight

3.4 kg (7.5 lb)

Shipping Box

300x160x180 mm

(11.8x6.3x7.1 in)

1

For different impedances, please ask.

2

2 hours test made with continuous pink noise signal (6 dB crest factor).

Power calculated on  rated minimum impedance. 

3

Power on Continuous Program is defined as 3 dB greater than the

Nominal rating.

4

Applied RMS Voltage is set to 2.83V for 8 ohms or 2.0V for 4 ohms

Nominal Impedance