B&C Speakers manual 10NDL64 Mid-Bass, Specification, Thiele & Small Parameters

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10NDL64 Mid-Bass

500 W continuous program power capacity

64 mm (2.5 in) aluminium voice coil

50 – 3000 Hz response

97 dB sensitivity Neodymium magnet allows a very light yet powerful motor assembly Ventilated voice coil gap for reduced power compression

LF Drivers LF Nd Drivers Coaxials HF Drivers Horns

Specification

Nominal Diameter

250 (10) mm (in)

Nominal Impedance (1)

8 Ohm

Minimum Impedence

7 Ohm

Nominal Power Handling (2)

250 W

Continuous Power Handling (3)

500 W

Sensitivity (1W/1m) (4)

97 dB

Frequency Range

50 - 3000 Hz

Voice Coil Diameter

64 (2.5) mm (in)

Winding Material

Aluminium

Former Material

Glass Fibre

Winding Depth

14 (0.55) mm (in)

Magnetic Gap Depth

8 (5/16) mm (in)

Flux Density

1.25 T

Thiele & Small Parameters

Fs

56 Hz

Re

5.7 Ohm

Qes

0.29

Qms

3.4

Qts

0.26

Vas

31 (1.1) dm3 (ft3)

Sd

320 (50) cm2 (in2)

Eta Zero

1.8 %

Xmax

+/- 6 mm

Xvar

+/- 7 mm

Mms

37 g

Bl

16.2 Txm

Le

0.9 mH

 

Mounting and Shipping Info

 

 

Overall Diameter

261 mm (10.3 in)

Bolt Circle Diameter

245 mm (9.6 in)

Baffle Cutout Diameter

230 mm (8.8 in)

Depth

113 mm (4.4 in)

Flange and Gasket Thickness

13 mm (0.5 in)

Net Weight

2.9 kg (6.4 lb)

Shipping Weight

3.5 kg (7.7 lb)

Shipping Box

330x330x160 mm

 

(13x13x6.3 in)

1For different impedances, please ask.

22 hours test made with continuous pink noise signal (6 dB crest factor). Power calculated on rated minimum impedance.

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

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

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Contents 10NDL64 Mid-Bass SpecificationThiele & Small Parameters Mounting and Shipping Info