12″ / 305 mm
Nominal diameter
24 Hz
Resonance
0.46
Q factor
87 dB
Sensitivity
± 12.5 mm
Linear excursion
2000 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.8
dB
Frequency response
10 - 900
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
24.0
Hz
Mechanical quality factor
QMS
6.53
Electrical quality factor
QES
0.50
Total quality factor
QTS
0.46
Large signal parameters
Maximum linear excursion
xmax
12.5
mm
Air volume displaced at xmax
VD
589
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.7
Ω
Inductance (1kHz)
LE
0.44
mH
VC Diameter
130
mm
Winding height
HVC
37
mm
Winding material
Hexatech™ Aluminum
Former material
Titanium
Magnet
Flux density
B
0.64
T
Force factor
Bl
13.0
N/A
Motor constant
Bl/√RE
6.76
N/√W
Air gap height
HAG
12
mm
Material
Double Magnet Vented
Diaphragm
Effective diameter
245
mm
Effective area
SD
471
cm²
Moving mass
MMS
134
g
Moving mass (without air load)
MMD
126.5
g
Material
Carbon-fiber laminated paper
Suspensions
Stiffness
KMS
3.03
N/mm
Compliance
CMS
330
µm/N
Equivalent volume to the compliance
VAS
103
L
Mechanical resistance
RMS
2.94
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
305
mm
Baffle cutout diameter
271
mm
Mounting depth
147
mm
Volume occupied by the driver
2.6
L
Net weight
6.7
kg
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12″Subwoofer
fS
22 Hz
SD
468 cm²
20 - 4000 Hz
QTS
0.41
xmax
12.3 mm
SPL1W
87 dB
Bl/√RE
6.79
Pmax
240 W