15″ / 401 mm
Nominal diameter
20 Hz
Resonance
0.54
Q factor
87 dB
Sensitivity
± 24 mm
Linear excursion
1100 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.7
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
19.6
Hz
Mechanical quality factor
QMS
7.30
Electrical quality factor
QES
0.58
Total quality factor
QTS
0.54
Large signal parameters
Maximum linear excursion
xmax
24.0
mm
Air volume displaced at xmax
VD
1920
cm³
Power handling
P
550
W
Program power
Pmax
1100
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
4.4
Ω
Inductance (1kHz, in series, estimated)
LE
1.76
mH
Magnet
Force factor (in series)
Bl
15.1
N/A
Motor constant
Bl/√RE
7.2
N/√W
Diameter
180
mm
Diaphragm
Effective diameter
319
mm
Effective area
SD
800
cm²
Moving mass
MMS
246.7
g
Moving mass (without air load)
MMD
230
g
Suspensions
Stiffness
KMS
3.73
N/mm
Compliance
CMS
268
µm/N
Equivalent volume to the compliance
VAS
245
L
Mechanical resistance
RMS
4.16
N·s/m
Dimensions
Nominal diameter
15
″
401
mm
Overall diameter
401
mm
Baffle cutout diameter
346
mm
Mounting depth
185
mm
Volume occupied by the driver (estimated)
4.9
L
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