PowerBass L-1504D
Subwoofer
15″ / 381 mm
Nominal diameter
27 Hz
Resonance
0.47
Q factor
88 dB
Sensitivity
± 12 mm
Linear excursion
1000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.7
dB
Frequency response
27 - 450
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
27.0
Hz
Mechanical quality factor
QMS
5.14
Electrical quality factor
QES
0.54
Total quality factor
QTS
0.47
Large signal parameters
Maximum linear excursion
xmax
12.0
mm
Air volume displaced at xmax
VD
936
cm³
Power handling
P
500
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
2 x 4
Ω
DC resistance (in series)
RE
6.4
Ω
Inductance (1kHz, in series, estimated)
LE
2.67
mH
VC Diameter
64
mm
Magnet
Force factor (in series)
Bl
22.6
N/A
Motor constant
Bl/√RE
8.93
N/√W
Weight
6.58
kg
Diaphragm
Effective diameter
315
mm
Effective area
SD
780
cm²
Moving mass
MMS
263.5
g
Moving mass (without air load)
MMD
247.9
g
Material
Injection molded Polypropylene
Suspensions
Stiffness
KMS
7.28
N/mm
Compliance
CMS
137
µm/N
Equivalent volume to the compliance
VAS
111
L
Mechanical resistance
RMS
8.7
N·s/m
Dimensions
Nominal diameter
15
″
381
mm
Baffle cutout diameter
355
mm
Mounting depth
165
mm
Volume occupied by the driver (estimated)
4.3
L
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SpeakerbenchSimilar subwoofers to PowerBass L-1504D
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fS
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SD
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QTS
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xmax
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SPL1W
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Bl/√RE
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Pmax
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SD
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QTS
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