15″ / 384 mm
Nominal diameter
38 Hz
Resonance
0.52
Q factor
95 dB
Sensitivity
± 3.25 mm
Linear excursion
500 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.7
dB
Frequency response
38 - 3500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
38.0
Hz
Mechanical quality factor
QMS
3.87
Electrical quality factor
QES
0.60
Total quality factor
QTS
0.52
Large signal parameters
Maximum linear excursion
xmax
3.25
mm
Air volume displaced at xmax
VD
275
cm³
Power handling
P
250
W
Program power
Pmax
500
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.6
Ω
Inductance (1kHz)
LE
0.7
mH
VC Diameter
50
mm
Winding material
Aluminium
Magnet
Force factor
Bl
9.39
N/A
Motor constant
Bl/√RE
4.95
N/√W
Diameter
156
mm
Weight
1.4
kg
Diaphragm
Effective diameter
328
mm
Effective area
SD
845
cm²
Moving mass
MMS
63
g
Moving mass (without air load)
MMD
45.9
g
Suspensions
Stiffness
KMS
3.33
N/mm
Compliance
CMS
300
µm/N
Equivalent volume to the compliance
VAS
117
L
Mechanical resistance
RMS
3.89
N·s/m
Dimensions
Nominal diameter
15
″
384
mm
Overall diameter
384
mm
Baffle cutout diameter
353
mm
Overall depth
149
mm
Flange thickness
0
mm
Mounting depth
149
mm
Volume occupied by the driver (estimated)
2.6
L
Net weight
4.56
kg
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fS
36 Hz
SD
1163 cm²
36 - 1800 Hz
QTS
0.48
xmax
6.0 mm
SPL1W
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Bl/√RE
7.14
Pmax
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15″Bass Guitar Speaker
fS
39 Hz
SD
873 cm²
42 - 3200 Hz
QTS
0.48
xmax
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SPL1W
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Bl/√RE
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Pmax
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fS
33 Hz
SD
1159 cm²
39 - 800 Hz
QTS
0.43
xmax
8.0 mm
SPL1W
95 dB
Bl/√RE
8.13
Pmax
2400 W