Beyma 15CMV2
Subwoofer
15″ / 380 mm
Nominal diameter
49 Hz
Resonance
0.49
Q factor
95 dB
Sensitivity
± 7 mm
Linear excursion
700 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.8
dB
Frequency response
50 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
49.0
Hz
Mechanical quality factor
QMS
4.10
Electrical quality factor
QES
0.55
Total quality factor
QTS
0.49
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Maximum excursion before damage
xlim
35.0
mm
Air volume displaced at xmax
VD
616
cm³
Power handling
P
350
W
Program power
Pmax
700
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.0
Ω
Inductance (1kHz)
LE
1.2
mH
VC Diameter
76
mm
Winding height
HVC
17.5
mm
Magnet
Force factor
Bl
18.8
N/A
Motor constant
Bl/√RE
7.68
N/√W
Air gap height
HAG
7
mm
Diaphragm
Effective diameter
335
mm
Effective area
SD
880
cm²
Moving mass
MMS
106
g
Moving mass (without air load)
MMD
88.2
g
Suspensions
Stiffness
KMS
10.53
N/mm
Compliance
CMS
95
µm/N
Equivalent volume to the compliance
VAS
104
L
Mechanical resistance
RMS
8.1
N·s/m
Dimensions
Nominal diameter
15
″
380
mm
Overall diameter
385
mm
Baffle cutout diameter
353
mm
Overall depth
165
mm
Volume occupied by the driver (estimated)
3.3
L
Net weight
6.0
kg
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SD
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SD
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