12.25″ / 311 mm
Nominal diameter
28 Hz
Resonance
0.48
Q factor
86 dB
Sensitivity
± 11.5 mm
Linear excursion
500 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.1
dB
Frequency response
28 - 300
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
28.0
Hz
Mechanical quality factor
QMS
11.50
Electrical quality factor
QES
0.50
Total quality factor
QTS
0.48
Large signal parameters
Maximum linear excursion
xmax
11.5
mm
Air volume displaced at xmax
VD
561
cm³
Power handling
P
250
W
Program power
Pmax
500
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz)
LE
1.55
mH
VC Diameter
51
mm
Winding height
HVC
31
mm
Magnet
Force factor
Bl
14.5
N/A
Motor constant
Bl/√RE
8.11
N/√W
Air gap height
HAG
8
mm
Weight
0.003
kg
Diaphragm
Effective diameter
249
mm
Effective area
SD
488
cm²
Moving mass
MMS
185
g
Moving mass (without air load)
MMD
177.1
g
Suspensions
Stiffness
KMS
5.56
N/mm
Compliance
CMS
180
µm/N
Equivalent volume to the compliance
VAS
61
L
Mechanical resistance
RMS
2.8
N·s/m
Dimensions
Nominal diameter
12.25
″
311
mm
Volume occupied by the driver (estimated)
2.9
L
Net weight
6.5
kg
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Export this driver to a simulation software:
WinISD
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Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar subwoofers to Wavecor SW312WA03/05
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