12″ / 320 mm
Nominal diameter
50 Hz
Resonance
0.2
Q factor
97 dB
Sensitivity
± 7 mm
Linear excursion
800 W
Program Power
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Available on (affiliate link)
Parts Express
$$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.3
dB
Frequency response
50 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
50.0
Hz
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
7.0
mm
Air volume displaced at xmax
VD
365
cm³
Power handling
P
400
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
1.0
mH
VC Diameter
76
mm
Winding height
HVC
19
mm
Winding material
Aluminium
Former material
Glass Fibre
Magnet
Flux density
B
1.25
T
Force factor
Bl
20.1
N/A
Motor constant
Bl/√RE
8.73
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
53
g
Moving mass (without air load)
MMD
44.4
g
Suspensions
Stiffness
KMS
5.03
N/mm
Compliance
CMS
199
µm/N
Equivalent volume to the compliance
VAS
73
L
Mechanical resistance
RMS
3.96
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:
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QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar woofers to B&C Speaker 12NDL76
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12″Woofer
fS
46 Hz
SD
531 cm²
58 - 5000 Hz
QTS
0.19
xmax
4.5 mm
SPL1W
98 dB
Bl/√RE
9.07
Pmax
600 W
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12″Subwoofer
fS
46 Hz
SD
531 cm²
90 - 4000 Hz
QTS
0.20
xmax
5.0 mm
SPL1W
97 dB
Bl/√RE
9.17
Pmax
1000 W
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12″Subwoofer
fS
44 Hz
SD
515 cm²
50 - 2000 Hz
QTS
0.18
xmax
5.3 mm
SPL1W
97 dB
Bl/√RE
9.1
Pmax
900 W