12″ / 305 mm
Nominal diameter
30 Hz
Resonance
0.4
Q factor
85 dB
Sensitivity
± 24 mm
Linear excursion
2000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.2
dB
Frequency response
25 - 450
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
30.3
Hz
Mechanical quality factor
QMS
3.92
Electrical quality factor
QES
0.45
Total quality factor
QTS
0.40
Large signal parameters
Maximum linear excursion
xmax
24.0
mm
Air volume displaced at xmax
VD
1274
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.4
Ω
Inductance (1kHz, in series, estimated)
LE
1.48
mH
VC Diameter
76
mm
Magnet
Force factor (in series)
Bl
18.99
N/A
Motor constant
Bl/√RE
10.3
N/√W
Weight
13.32
kg
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
280.4
g
Moving mass (without air load)
MMD
271.9
g
Material
Non Press Pulp Paper
Suspensions
Stiffness
KMS
10.19
N/mm
Compliance
CMS
98
µm/N
Equivalent volume to the compliance
VAS
39.3
L
Mechanical resistance
RMS
13.62
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Baffle cutout diameter
280
mm
Mounting depth
229
mm
Volume occupied by the driver (estimated)
2.4
L
Export this driver to a simulation software:
WinISD
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QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar subwoofers to PowerBass 3XL-1220D
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Cerwin Vega ST124D2 x 4 Ω
12″Subwoofer
fS
30 Hz
SD
490 cm²
QTS
0.44
xmax
16.4 mm
SPL1W
85 dB
Bl/√RE
9.47
Pmax
2000 W
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PowerBass 3XL-1202D2 x 2 Ω
12″Subwoofer
fS
30 Hz
SD
531 cm²
25 - 450 Hz
QTS
0.45
xmax
24.0 mm
SPL1W
85 dB
Bl/√RE
11
Pmax
1700 W
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Cerwin Vega ST122D2 x 2 Ω
12″Subwoofer
fS
29 Hz
SD
490 cm²
QTS
0.44
xmax
16.4 mm
SPL1W
85 dB
Bl/√RE
9.63
Pmax
2000 W