12″ / 305 mm
Nominal diameter
26 Hz
Resonance
0.52
Q factor
86 dB
Sensitivity
± 13.3 mm
Linear excursion
800 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.3
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
26.0
Hz
Mechanical quality factor
QMS
6.50
Electrical quality factor
QES
0.56
Total quality factor
QTS
0.52
Large signal parameters
Maximum linear excursion
xmax
13.3
mm
Air volume displaced at xmax
VD
758
cm³
Power handling
P
400
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.3
Ω
Inductance (1kHz, in series)
LE
3.7
mH
VC Diameter
57
mm
Magnet
Force factor (in series)
Bl
14.3
N/A
Motor constant
Bl/√RE
7.87
N/√W
Weight
2.06
kg
Diaphragm
Effective diameter
269
mm
Effective area
SD
570
cm²
Moving mass
MMS
211.7
g
Moving mass (without air load)
MMD
202.6
g
Suspensions
Stiffness
KMS
5.65
N/mm
Compliance
CMS
177
µm/N
Equivalent volume to the compliance
VAS
81.5
L
Mechanical resistance
RMS
5.32
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Baffle cutout diameter
285
mm
Mounting depth
162
mm
Volume occupied by the driver
2.41
L
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fS
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SD
845 cm²
QTS
0.44
xmax
14.0 mm
SPL1W
87 dB
Bl/√RE
12
Pmax
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