12″ / 314 mm
Nominal diameter
26 Hz
Resonance
0.31
Q factor
87 dB
Sensitivity
± 12.3 mm
Linear excursion
1400 W
Program Power
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Available on (affiliate link)
Parts Express
$$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.5
dB
Frequency response
26 - 600
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
26.2
Hz
Mechanical quality factor
QMS
3.63
Electrical quality factor
QES
0.33
Total quality factor
QTS
0.31
Large signal parameters
Maximum linear excursion
xmax
12.3
mm
Air volume displaced at xmax
VD
633
cm³
Power handling
P
700
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz)
LE
1.75
mH
VC Diameter
64
mm
Winding material
Copper
Former material
Aluminum
Magnet
Force factor
Bl
20.0
N/A
Motor constant
Bl/√RE
11.2
N/√W
Weight
4.252
kg
Material
Ferrite
Diaphragm
Effective diameter
256
mm
Effective area
SD
515
cm²
Moving mass
MMS
251
g
Moving mass (without air load)
MMD
242.6
g
Material
Black Anodized Aluminum
Suspensions
Stiffness
KMS
6.67
N/mm
Compliance
CMS
150
µm/N
Equivalent volume to the compliance
VAS
53.7
L
Mechanical resistance
RMS
11.38
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
12
″
314
mm
Overall diameter
314
mm
Baffle cutout diameter
282
mm
Overall depth
146
mm
Volume occupied by the driver (estimated)
2.5
L
Frame material
Cast Aluminium
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12″Subwoofer
fS
27 Hz
SD
491 cm²
40 - 400 Hz
QTS
0.36
xmax
25.2 mm
SPL1W
86 dB
Bl/√RE
11
Pmax
400 W
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10″Subwoofer
fS
26 Hz
SD
338 cm²
25 - 500 Hz
QTS
0.31
xmax
10.0 mm
SPL1W
87 dB
Bl/√RE
7.27
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