B&C Speaker 12NDL76

8Ω

Woofer

Nominal diameter	12″ / 320 mm
Resonance	50 Hz
Q factor	0.20
Sensitivity	97.3 dB
Linear excursion	± 7 mm
Program Power	800 W

B&C Speaker 12NDL76 Woofer

Specifications

Sensitivity (1W, 1m, infinite baffle) SPL1W 97.3dB
Frequency response 50 - 2000Hz

Thiele & Small parameters

Resonance frequency (free air) fS 50Hz
Mechanical quality factor QMS 4.20
Electrical quality factor QES 0.21
Total quality factor QTS 0.20

Large signal parameters

Maximum linear excursion xmax 7mm
Air volume displaced at xmax VD 365cm³
Power handling P 400W
Program power Pmax 800W

Voice Coil

Nominal impedance Z 8Ω
DC resistance RE 5.3Ω
Inductance (1kHz) LE 1mH
VC Diameter 76mm
Winding height HVC 19mm
Winding material Aluminium
Former material Glass Fibre

Magnet

Flux density B 1.25T
Force factor Bl 20.1N/A
Motor constant Bl/√RE 8.73N/√W
Air gap height HAG 10mm
Material Neodymium Inside Slug

Diaphragm

Effective diameter 258mm
Effective area SD 522cm²
Moving mass MMS 53g
Moving mass (without air load) MMD 44.4g

Suspensions

Stiffness KMS 5.03N/mm
Compliance CMS 199µm/N
Equivalent volume to the compliance VAS 73L
Mechanical resistance RMS 3.96N·s/m

Dimensions

Nominal diameter 12″
320mm
Overall diameter 315mm
Baffle cutout diameter 283mm
Overall depth 141mm
Flange thickness 14mm
Mounting depth 127mm
Volume occupied by the driver 2.5L
Net weight 3.9kg

B&C Speaker 12NDL76 SPL

B&C Speaker 12NDL76 Dimensions

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