15″ / 390 mm
Nominal diameter
31 Hz
Resonance
0.66
Q factor
87 dB
Sensitivity
± 17 mm
Linear excursion
1800 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.9
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
31.2
Hz
Mechanical quality factor
QMS
5.50
Electrical quality factor
QES
0.75
Total quality factor
QTS
0.66
Large signal parameters
Maximum linear excursion
xmax
17.0
mm
Air volume displaced at xmax
VD
1316
cm³
Power handling
P
900
W
Program power
Pmax
1800
W
Voice Coil
Nominal impedance
Z
1
Ω
DC resistance
RE
0.3
Ω
Inductance (1kHz, estimated)
LE
0.14
mH
VC Diameter
64
mm
Winding material
round copper
Magnet
Force factor
Bl
5.2
N/A
Motor constant
Bl/√RE
9.49
N/√W
Diameter
156
mm
Height
48
mm
Diaphragm
Effective diameter
314
mm
Effective area
SD
774
cm²
Moving mass
MMS
320
g
Moving mass (without air load)
MMD
304.3
g
Material
Paper with glass fiber
Suspensions
Stiffness
KMS
12.35
N/mm
Compliance
CMS
81
µm/N
Equivalent volume to the compliance
VAS
68.7
L
Mechanical resistance
RMS
11.41
N·s/m
Dimensions
Nominal diameter
15
″
390
mm
Overall diameter
390
mm
Baffle cutout diameter
352
mm
Mounting depth
179
mm
Volume occupied by the driver
3.5
L
Net weight
8.0
kg
Frame material
Steel
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QSpeakers
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SpeakerbenchSimilar subwoofers to Pride M9.15 S1
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12″Subwoofer
fS
32 Hz
SD
524 cm²
28 - 300 Hz
QTS
0.62
xmax
9.0 mm
SPL1W
87 dB
Bl/√RE
6.17
Pmax
1000 W
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