15″ / 381 mm
Nominal diameter
24 Hz
Resonance
0.42
Q factor
88 dB
Sensitivity
± 24 mm
Linear excursion
2000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.7
dB
Frequency response
25 - 400
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
24.2
Hz
Mechanical quality factor
QMS
3.88
Electrical quality factor
QES
0.46
Total quality factor
QTS
0.42
Large signal parameters
Maximum linear excursion
xmax
24.0
mm
Air volume displaced at xmax
VD
2053
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.8
Ω
Inductance (1kHz, in series, estimated)
LE
1.94
mH
VC Diameter
76
mm
Magnet
Force factor (in series)
Bl
22.01
N/A
Motor constant
Bl/√RE
11.3
N/√W
Weight
14.32
kg
Diaphragm
Effective diameter
330
mm
Effective area
SD
855
cm²
Moving mass
MMS
365.8
g
Moving mass (without air load)
MMD
348.6
g
Material
Non Press Pulp Paper
Suspensions
Stiffness
KMS
8.46
N/mm
Compliance
CMS
118
µm/N
Equivalent volume to the compliance
VAS
123
L
Mechanical resistance
RMS
14.33
N·s/m
Dimensions
Nominal diameter
15
″
381
mm
Baffle cutout diameter
356
mm
Mounting depth
234
mm
Volume occupied by the driver (estimated)
4.3
L
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