SB Acoustics SB10PGC21-4
Full-range
3″ / 76 mm
Nominal diameter
89 Hz
Resonance
0.92
Q factor
82 dB
Sensitivity
± 2.25 mm
Linear excursion
40 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
81.9
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
89.0
Hz
Mechanical quality factor
QMS
11.20
Electrical quality factor
QES
1.01
Total quality factor
QTS
0.92
Large signal parameters
Maximum linear excursion
xmax
2.25
mm
Air volume displaced at xmax
VD
6.1
cm³
Power handling
P
20
W
Program power
Pmax
40
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.4
Ω
Inductance (1kHz)
LE
0.15
mH
VC Diameter
20
mm
Winding height
HVC
7.5
mm
Magnet
Flux density
B
0.8
T
Force factor
Bl
2.3
N/A
Motor constant
Bl/√RE
1.25
N/√W
Air gap height
HAG
3
mm
Weight
0.09
kg
Diaphragm
Effective diameter
59
mm
Effective area
SD
27
cm²
Moving mass
MMS
2.8
g
Moving mass (without air load)
MMD
2.7
g
Suspensions
Stiffness
KMS
0.88
N/mm
Compliance
CMS
1140
µm/N
Equivalent volume to the compliance
VAS
1.2
L
Mechanical resistance
RMS
0.14
N·s/m
Dimensions
Nominal diameter
3
″
76
mm
Net weight
0.24
kg
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3.3″Full-range
fS
110 Hz
SD
26 cm²
70 - 20000 Hz
QTS
0.97
xmax
0.5 mm
SPL1W
82 dB
Bl/√RE
0.907
Pmax
50 W
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3″Full-range
fS
100 Hz
SD
30 cm²
200 - 18000 Hz
QTS
0.99
xmax
1.4 mm
SPL1W
83 dB
Bl/√RE
1.15
Pmax
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3″Full-range
fS
97 Hz
SD
28 cm²
80 - 18000 Hz
QTS
0.81
xmax
2.7 mm
SPL1W
82 dB
Bl/√RE
1.44
Pmax
30 W