15″ / 381 mm
Nominal diameter
31 Hz
Resonance
0.41
Q factor
90 dB
Sensitivity
± 11 mm
Linear excursion
800 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
90.3
dB
Frequency response
30 - 500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
31.0
Hz
Mechanical quality factor
QMS
3.40
Electrical quality factor
QES
0.46
Total quality factor
QTS
0.41
Large signal parameters
Maximum linear excursion
xmax
11.0
mm
Air volume displaced at xmax
VD
829
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
4.1
Ω
Inductance (1kHz, in series, estimated)
LE
1.33
mH
VC Diameter
51
mm
Magnet
Force factor (in series)
Bl
17.1
N/A
Motor constant
Bl/√RE
8.45
N/√W
Diameter
160
mm
Diaphragm
Effective diameter
310
mm
Effective area
SD
754
cm²
Moving mass
MMS
175
g
Moving mass (without air load)
MMD
160
g
Suspensions
Stiffness
KMS
6.67
N/mm
Compliance
CMS
150
µm/N
Equivalent volume to the compliance
VAS
121
L
Mechanical resistance
RMS
10.03
N·s/m
Dimensions
Nominal diameter
15
″
381
mm
Baffle cutout diameter
356
mm
Mounting depth
170
mm
Volume occupied by the driver
3.7
L
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SD
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QTS
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xmax
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SD
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SD
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28 - 500 Hz
QTS
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