9.5″ / 241 mm
Nominal diameter
28 Hz
Resonance
0.4
Q factor
87 dB
Sensitivity
± 8.5 mm
Linear excursion
180 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.3
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
28.0
Hz
Mechanical quality factor
QMS
6.70
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.40
Large signal parameters
Maximum linear excursion
xmax
8.5
mm
Air volume displaced at xmax
VD
217
cm³
Power handling
P
90
W
Program power
Pmax
180
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz)
LE
0.29
mH
VC Diameter
50
mm
Winding height
HVC
23
mm
Magnet
Flux density
B
1.1
T
Force factor
Bl
7.6
N/A
Motor constant
Bl/√RE
4.18
N/√W
Air gap height
HAG
6
mm
Weight
1.36
kg
Diaphragm
Effective diameter
180
mm
Effective area
SD
255
cm²
Moving mass
MMS
42
g
Moving mass (without air load)
MMD
38.9
g
Suspensions
Stiffness
KMS
1.3
N/mm
Compliance
CMS
770
µm/N
Equivalent volume to the compliance
VAS
71
L
Mechanical resistance
RMS
1.1
N·s/m
Dimensions
Nominal diameter
9.5
″
241
mm
Volume occupied by the driver (estimated)
1.6
L
Net weight
3.7
kg
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar woofers to SB Acoustics WO24P-4
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8″Subwoofer
fS
25 Hz
SD
220 cm²
30 - 2000 Hz
QTS
0.34
xmax
5.0 mm
SPL1W
88 dB
Bl/√RE
3.28
Pmax
300 W
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10″Woofer
fS
30 Hz
SD
353 cm²
29 - 6000 Hz
QTS
0.39
xmax
5.5 mm
SPL1W
88 dB
Bl/√RE
4.82
Pmax
200 W
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