BMS 15N620
Subwoofer
15″ / 388 mm
Nominal diameter
41 Hz
Resonance
0.35
Q factor
96 dB
Sensitivity
± 5.5 mm
Linear excursion
1000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.4
dB
Frequency response
35 - 2500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
41.0
Hz
Mechanical quality factor
QMS
5.90
Electrical quality factor
QES
0.37
Total quality factor
QTS
0.35
Large signal parameters
Maximum linear excursion
xmax
5.5
mm
Air volume displaced at xmax
VD
484
cm³
Power handling
P
500
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.7
Ω
Inductance (1kHz)
LE
0.65
mH
VC Diameter
77
mm
Winding height
HVC
19
mm
Winding material
Copper
Magnet
Force factor
Bl
20.6
N/A
Motor constant
Bl/√RE
8.63
N/√W
Air gap height
HAG
8
mm
Material
Neodymium
Diaphragm
Effective diameter
335
mm
Effective area
SD
880
cm²
Moving mass
MMS
109
g
Moving mass (without air load)
MMD
91
g
Suspensions
Stiffness
KMS
7.14
N/mm
Compliance
CMS
140
µm/N
Equivalent volume to the compliance
VAS
154
L
Mechanical resistance
RMS
4.76
N·s/m
Dimensions
Nominal diameter
15
″
388
mm
Overall diameter
388
mm
Baffle cutout diameter
358
mm
Overall depth
174
mm
Volume occupied by the driver (estimated)
2.5
L
Net weight
3.7
kg
Frame material
Cast Aluminum
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SD
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