P.Audio 15BM-300B v3
Low frequency
15″ / 381 mm
Nominal diameter
48 Hz
Resonance
0.4
Q factor
98 dB
Sensitivity
± 3.9 mm
Linear excursion
600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.8
dB
Frequency response
45 - 3500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
48.0
Hz
Mechanical quality factor
QMS
5.39
Electrical quality factor
QES
0.43
Total quality factor
QTS
0.40
Large signal parameters
Maximum linear excursion
xmax
3.9
mm
Air volume displaced at xmax
VD
334
cm³
Power handling
P
300
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.7
Ω
Inductance (1kHz)
LE
0.44
mH
VC Diameter
76
mm
Winding height
HVC
16.8
mm
Winding material
CCA-W
Former material
Glass fiber
Magnet
Flux density
B
1.2
T
Force factor
Bl
19.19
N/A
Motor constant
Bl/√RE
8.04
N/√W
Air gap height
HAG
9
mm
Material
Ferrite
Diaphragm
Effective diameter
331
mm
Effective area
SD
855
cm²
Moving mass
MMS
92.2
g
Moving mass (without air load)
MMD
74.6
g
Material
Paper
Suspensions
Stiffness
KMS
8.4
N/mm
Compliance
CMS
119
µm/N
Equivalent volume to the compliance
VAS
123
L
Mechanical resistance
RMS
5.16
N·s/m
Surround material
Cloth
Spider material
Cotton (Single)
Dimensions
Nominal diameter
15
″
381
mm
Overall diameter
392
mm
Baffle cutout diameter
353
mm
Overall depth
167
mm
Flange thickness
16
mm
Mounting depth
151
mm
Volume occupied by the driver (estimated)
4.1
L
Net weight
8.0
kg
Frame material
Aluminium
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15″Low frequency
fS
48 Hz
SD
855 cm²
45 - 3500 Hz
QTS
0.40
xmax
3.9 mm
SPL1W
98 dB
Bl/√RE
8.04
Pmax
600 W
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15″Subwoofer
fS
45 Hz
SD
881 cm²
40 - 4000 Hz
QTS
0.39
xmax
8.3 mm
SPL1W
97 dB
Bl/√RE
8.55
Pmax
1800 W
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15″Low frequency
fS
47 Hz
SD
855 cm²
40 - 4000 Hz
QTS
0.41
xmax
4.8 mm
SPL1W
98 dB
Bl/√RE
7.94
Pmax
1100 W