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
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
Discard
Apply
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
Beyma 15CMV2 SPL & Impedance
Beyma 15CMV2 Dimensions

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