Cerwin Vega HS122D

2x2Ω
2x4Ω

Subwoofer

12″ / 319 mm
Nominal diameter
30 Hz
Resonance
0.88
Q factor
84 dB
Sensitivity
± 8.9 mm
Linear excursion
500 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
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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
83.9
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
30.0
Hz
Mechanical quality factor
QMS
5.50
Electrical quality factor
QES
1.05
Total quality factor
QTS
0.88

Large signal parameters

Maximum linear excursion
xmax
8.9
mm
Air volume displaced at xmax
VD
472
cm³
Power handling
P
250
W
Program power
Pmax
500
W

Voice Coil

Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.0
Ω
Inductance (1kHz, in series, estimated)
LE
1.12
mH

Magnet

Force factor (in series)
Bl
10.9
N/A
Motor constant
Bl/√RE
6.29
N/√W

Diaphragm

Effective diameter
260
mm
Effective area
SD
530
cm²
Moving mass
MMS
220
g
Moving mass (without air load)
MMD
211.2
g

Suspensions

Stiffness
KMS
7.69
N/mm
Compliance
CMS
130
µm/N
Equivalent volume to the compliance
VAS
50.9
L
Mechanical resistance
RMS
7.54
N·s/m

Dimensions

Nominal diameter
12
319
mm
Overall diameter
319
mm
Baffle cutout diameter
283
mm
Mounting depth
97
mm
Volume occupied by the driver
1.05
L
Cerwin Vega HS122D Dimensions

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