15″ / 388 mm
Nominal diameter
39 Hz
Resonance
0.42
Q factor
95 dB
Sensitivity
± 8 mm
Linear excursion
1200 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
94.8
dB
Frequency response
35 - 2500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
6.74
Electrical quality factor
QES
0.45
Total quality factor
QTS
0.42
Large signal parameters
Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
704
cm³
Power handling
P
600
W
Program power
Pmax
1200
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.0
Ω
Inductance (1kHz)
LE
0.7
mH
VC Diameter
77
mm
Winding height
HVC
26
mm
Magnet
Force factor
Bl
19.8
N/A
Motor constant
Bl/√RE
8.08
N/√W
Air gap height
HAG
10
mm
Diaphragm
Effective diameter
335
mm
Effective area
SD
880
cm²
Moving mass
MMS
121
g
Moving mass (without air load)
MMD
103
g
Suspensions
Stiffness
KMS
7.14
N/mm
Compliance
CMS
140
µm/N
Equivalent volume to the compliance
VAS
152
L
Mechanical resistance
RMS
4.4
N·s/m
Dimensions
Nominal diameter
15
″
388
mm
Overall diameter
388
mm
Baffle cutout diameter
358
mm
Overall depth
182
mm
Volume occupied by the driver (estimated)
2.9
L
Net weight
4.3
kg
Frame material
Cast Aluminum
Similar subwoofers to BMS 15N630
15″Subwoofer
fS
39 Hz
SD
832 cm²
34 - 3500 Hz
QTS
0.37
xmax
4.8 mm
SPL1W
95 dB
Bl/√RE
7.15
Pmax
1500 W
18″Low frequency
fS
38 Hz
SD
1225 cm²
35 - 1000 Hz
QTS
0.48
xmax
8.5 mm
SPL1W
94 dB
Bl/√RE
11
Pmax
2400 W
15″Bass Guitar Speaker
fS
39 Hz
SD
856 cm²
38 - 2700 Hz
QTS
0.38
xmax
5.5 mm
SPL1W
95 dB
Bl/√RE
8.0
Pmax
1200 W