B&C Speakers Woofer 6NDL44 Specifications

6NDL44

Woofer

LF Drivers

LF Nd Drivers

Coaxials

HF Drivers

Horns

400 W continuous program  power capacity

44 mm (1.7 in) copper voice coil

70 - 6000 Hz response

91.5 dB sensitivity

Specification

Nominal Diameter

170 (6.5) mm (in)

Nominal Impedance (1)

8 Ohm

Minimum Impedence

5.8 Ohm

Nominal Power Handling (2)

200 W

Continuous  Power Handling (3)

400 W

Sensitivity (1W/1m) (4)

91.5 dB

Frequency Range

70 - 6000 Hz

Voice Coil Diameter

44 (1.7) mm (in)

Winding Material

Copper 

Former Material

Kapton 

Winding Depth

12 (1/2) mm (in)

Magnetic Gap Depth

6 (1/4) mm (in)

Flux Density

1.25 T

Thiele & Small Parameters

Fs

68 Hz

Re

5.0 Ohm

Qes

0.35 

Qms

9 

Qts

0.34 

Vas

7.5 (0.26) dm3 (ft3)

Sd

132 (20.5) cm2 (in2)

Eta Zero

0.65 %

Xmax

6.0 mm

Xvar

5.5 mm

Mms

17.8 g

Bl

10.3 Txm

Le

0.57 mH

Mounting and Shipping Info

Overall Diameter

187 mm (7.4 in)

Bolt Circle Diameter

172 mm (6.7 in)

Baffle Cutout Diameter

145 mm (5.7 in)

Depth

82 mm (3.2 in)

Flange and Gasket Thickness

11 mm (0.4 in)

Net Weight

1.2 kg (2.6 lb)

Shipping Weight (4 units)

6.1 kg (13.4 lb)

Shipping Box (4 units)

405x225x210 mm

(15.9x8.8x8.3 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 Nominal Impedance.