12″ / 320 mm
Nominal diameter
48 Hz
Resonance
0.24
Q factor
95 dB
Sensitivity
± 8 mm
Linear excursion
1400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.3
dB
Frequency response
50 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
48.0
Hz
Mechanical quality factor
QMS
6.80
Electrical quality factor
QES
0.25
Total quality factor
QTS
0.24
Large signal parameters
Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
418
cm³
Power handling
P
700
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz)
LE
0.9
mH
VC Diameter
88
mm
Winding height
HVC
21.5
mm
Winding material
Aluminium
Former material
Glass Fibre
Magnet
Flux density
B
1.05
T
Force factor
Bl
16.6
N/A
Motor constant
Bl/√RE
9.43
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
73.6
g
Moving mass (without air load)
MMD
65
g
Material
Waterproof Front Side
Suspensions
Stiffness
KMS
6.71
N/mm
Compliance
CMS
149
µm/N
Equivalent volume to the compliance
VAS
57
L
Mechanical resistance
RMS
3.26
N·s/m
Spider material
Silicone
Dimensions
Nominal diameter
12
″
320
mm
Overall diameter
315
mm
Baffle cutout diameter
282
mm
Overall depth
140
mm
Flange thickness
13
mm
Mounting depth
127
mm
Volume occupied by the driver
2.5
L
Net weight
4.95
kg
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar woofers to B&C Speaker 12NDL88
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12″Woofer
fS
51 Hz
SD
522 cm²
50 - 3000 Hz
QTS
0.27
xmax
8.0 mm
SPL1W
95 dB
Bl/√RE
8.9
Pmax
1400 W
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RCF LF12P9038 Ω
12″Subwoofer
fS
47 Hz
SD
530 cm²
40 - 2000 Hz
QTS
0.23
xmax
7.0 mm
SPL1W
96 dB
Bl/√RE
9.24
Pmax
1000 W