SB Acoustics SB16PFC25-4-COAX
Coaxial
6″ / 152 mm
Nominal diameter
36 Hz
Resonance
0.31
Q factor
88 dB
Sensitivity
± 4.65 mm
Linear excursion
80 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.7
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
36.0
Hz
Mechanical quality factor
QMS
2.60
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.31
Large signal parameters
Maximum linear excursion
xmax
4.65
mm
Air volume displaced at xmax
VD
55
cm³
Power handling
P
40
W
Program power
Pmax
80
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz)
LE
0.31
mH
VC Diameter
25
mm
Winding height
HVC
14.3
mm
Magnet
Flux density
B
1.1
T
Force factor
Bl
5.1
N/A
Motor constant
Bl/√RE
2.85
N/√W
Air gap height
HAG
5
mm
Weight
0.36
kg
Diaphragm
Effective diameter
123
mm
Effective area
SD
119
cm²
Moving mass
MMS
12.5
g
Moving mass (without air load)
MMD
11.6
g
Suspensions
Stiffness
KMS
0.64
N/mm
Compliance
CMS
1560
µm/N
Equivalent volume to the compliance
VAS
31.3
L
Mechanical resistance
RMS
1.1
N·s/m
Dimensions
Nominal diameter
6
″
152
mm
Volume occupied by the driver (estimated)
0.37
L
Net weight
0.95
kg
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fS
37 Hz
SD
136 cm²
45 - 3000 Hz
QTS
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xmax
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SPL1W
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Bl/√RE
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Pmax
250 W
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fS
36 Hz
SD
126 cm²
40 - 2500 Hz
QTS
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xmax
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SPL1W
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Bl/√RE
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Pmax
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