8″ / 203 mm
Nominal diameter
27 Hz
Resonance
0.34
Q factor
85 dB
Sensitivity
± 12 mm
Linear excursion
300 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
84.8
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
27.0
Hz
Mechanical quality factor
QMS
7.70
Electrical quality factor
QES
0.36
Total quality factor
QTS
0.34
Large signal parameters
Maximum linear excursion
xmax
12.0
mm
Air volume displaced at xmax
VD
252
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz)
LE
0.73
mH
VC Diameter
46
mm
Winding height
HVC
32
mm
Magnet
Flux density
B
1.03
T
Force factor
Bl
9.6
N/A
Motor constant
Bl/√RE
5.28
N/√W
Air gap height
HAG
8
mm
Weight
2.0
kg
Diaphragm
Effective diameter
164
mm
Effective area
SD
210
cm²
Moving mass
MMS
59
g
Moving mass (without air load)
MMD
56.8
g
Suspensions
Stiffness
KMS
1.7
N/mm
Compliance
CMS
590
µm/N
Equivalent volume to the compliance
VAS
37
L
Mechanical resistance
RMS
1.3
N·s/m
Dimensions
Nominal diameter
8
″
203
mm
Volume occupied by the driver (estimated)
2.0
L
Net weight
4.7
kg
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Export this driver to a simulation software:
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SpeakerbenchSimilar subwoofers to SB Acoustics SB23MFCL45-4
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