Cerwin Vega VPS124D

2x2Ω
2x4Ω

Shallow Subwoofer

12″ / 319 mm
Nominal diameter
39 Hz
Resonance
0.83
Q factor
86 dB
Sensitivity
± 8.8 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
86.3
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
38.6
Hz
Mechanical quality factor
QMS
5.00
Electrical quality factor
QES
1.00
Total quality factor
QTS
0.83

Large signal parameters

Maximum linear excursion
xmax
8.8
mm
Air volume displaced at xmax
VD
475
cm³
Power handling
P
350
W
Program power
Pmax
700
W

Voice Coil

Nominal impedance
Z
2 x 4
Ω
DC resistance (in series)
RE
6.0
Ω
Inductance (1kHz, in series, estimated)
LE
1.86
mH

Magnet

Force factor (in series)
Bl
15.3
N/A
Motor constant
Bl/√RE
6.25
N/√W

Diaphragm

Effective diameter
262
mm
Effective area
SD
540
cm²
Moving mass
MMS
162
g
Moving mass (without air load)
MMD
153
g

Suspensions

Stiffness
KMS
9.52
N/mm
Compliance
CMS
105
µm/N
Equivalent volume to the compliance
VAS
43
L
Mechanical resistance
RMS
7.86
N·s/m

Dimensions

Nominal diameter
12
319
mm
Overall diameter
319
mm
Baffle cutout diameter
280
mm
Mounting depth
94
mm
Volume occupied by the driver
0.93
L
Cerwin Vega VPS124D Dimensions

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