12″ / 305 mm
Nominal diameter
39 Hz
Resonance
0.34
Q factor
88 dB
Sensitivity
± 15 mm
Linear excursion
1500 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.0
dB
Frequency response
35 - 500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
4.10
Electrical quality factor
QES
0.37
Total quality factor
QTS
0.34
Large signal parameters
Maximum linear excursion
xmax
15.0
mm
Air volume displaced at xmax
VD
765
cm³
Power handling
P
1000
W
Program power
Pmax
1500
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.9
Ω
Inductance (1kHz, in series, estimated)
LE
1.55
mH
VC Diameter
64
mm
Magnet
Force factor (in series)
Bl
25.5
N/A
Motor constant
Bl/√RE
12.9
N/√W
Diameter
196
mm
Diaphragm
Effective diameter
255
mm
Effective area
SD
510
cm²
Moving mass
MMS
243
g
Moving mass (without air load)
MMD
234.8
g
Suspensions
Stiffness
KMS
14.29
N/mm
Compliance
CMS
70
µm/N
Equivalent volume to the compliance
VAS
24.8
L
Mechanical resistance
RMS
14.52
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Baffle cutout diameter
286
mm
Mounting depth
168
mm
Volume occupied by the driver
4.2
L
Export this driver to a simulation software:
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QSpeakers
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fS
39 Hz
SD
510 cm²
35 - 500 Hz
QTS
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xmax
15.0 mm
SPL1W
88 dB
Bl/√RE
12
Pmax
1500 W
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SD
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QTS
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fS
37 Hz
SD
480 cm²
QTS
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xmax
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SPL1W
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Bl/√RE
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Pmax
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