12″ / 320 mm
Nominal diameter
50 Hz
Resonance
0.19
Q factor
98 dB
Sensitivity
± 6 mm
Linear excursion
800 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.6
dB
Frequency response
50 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
50.0
Hz
Mechanical quality factor
QMS
3.25
Electrical quality factor
QES
0.20
Total quality factor
QTS
0.19
Large signal parameters
Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
313
cm³
Power handling
P
400
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz)
LE
0.72
mH
VC Diameter
76
mm
Winding height
HVC
18.5
mm
Winding material
Aluminium
Former material
Glass Fibre
Magnet
Flux density
B
1.25
T
Force factor
Bl
16.5
N/A
Motor constant
Bl/√RE
9.37
N/√W
Air gap height
HAG
10
mm
Material
Neodymium Inside Slug
Diaphragm
Effective diameter
258
mm
Effective area
SD
522
cm²
Moving mass
MMS
54
g
Moving mass (without air load)
MMD
45.4
g
Suspensions
Stiffness
KMS
5.53
N/mm
Compliance
CMS
181
µm/N
Equivalent volume to the compliance
VAS
70
L
Mechanical resistance
RMS
5.22
N·s/m
Dimensions
Nominal diameter
12
″
320
mm
Overall diameter
315
mm
Baffle cutout diameter
283
mm
Overall depth
141
mm
Flange thickness
14
mm
Mounting depth
127
mm
Volume occupied by the driver
2.5
L
Net weight
3.9
kg
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar woofers to B&C Speaker 12NDL76
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12″Mid Bass
fS
54 Hz
SD
531 cm²
80 - 3500 Hz
QTS
0.18
xmax
2.5 mm
SPL1W
98 dB
Bl/√RE
9.76
Pmax
800 W
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12″Coaxial
fS
50 Hz
SD
522 cm²
50 - 18000 Hz
QTS
0.22
xmax
8.0 mm
SPL1W
97 dB
Bl/√RE
9.35
Pmax
1000 W
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12″Mid Bass
fS
46 Hz
SD
540 cm²
50 - 5000 Hz
QTS
0.19
xmax
4.0 mm
SPL1W
97 dB
Bl/√RE
9.84
Pmax
1000 W