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
Available on (affiliate link)
Amazon.com
$$
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
Similar subwoofers to Cerwin Vega HS122D
12″Subwoofer
fS
31 Hz
SD
530 cm²
QTS
0.92
xmax
8.3 mm
SPL1W
84 dB
Bl/√RE
5.96
Pmax
500 W
12″Shallow Subwoofer
fS
30 Hz
SD
543 cm²
22 - 150 Hz
QTS
0.80
xmax
13.0 mm
SPL1W
84 dB
Bl/√RE
7.28
Pmax
800 W
12″Subwoofer
fS
30 Hz
SD
507 cm²
QTS
0.72
xmax
13.4 mm
SPL1W
85 dB
Bl/√RE
6.8
Pmax
1000 W