SEAS OR003-04 FL4RCN/F
Full-range
1.5″ / 40 mm
Nominal diameter
140 Hz
Resonance
0.37
Q factor
80 dB
Sensitivity
± 2.7 mm
Linear excursion
4 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
80.1
dB
Frequency response
200 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
140
Hz
Mechanical quality factor
QMS
1.56
Electrical quality factor
QES
0.48
Total quality factor
QTS
0.37
Large signal parameters
Maximum linear excursion
xmax
2.7
mm
Maximum excursion before damage
xlim
3.15
mm
Air volume displaced at xmax
VD
2.5
cm³
Power handling
P
3
W
Program power
Pmax
4
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.6
Ω
Inductance (1kHz)
LE
0.09
mH
VC Diameter
26
mm
Winding height
HVC
9
mm
Magnet
Flux density
B
0.693
T
Force factor
Bl
2.8
N/A
Motor constant
Bl/√RE
1.47
N/√W
Air gap height
HAG
2
mm
Diameter
32
mm
Weight
0.021
kg
Diaphragm
Effective diameter
34
mm
Effective area
SD
9.1
cm²
Moving mass
MMS
1.2
g
Moving mass (without air load)
MMD
1.2
g
Suspensions
Stiffness
KMS
0.94
N/mm
Compliance
CMS
1070
µm/N
Equivalent volume to the compliance
VAS
0.13
L
Mechanical resistance
RMS
0.68
N·s/m
Dimensions
Nominal diameter
1.5
″
40
mm
Overall diameter
40
mm
Baffle cutout diameter
36
mm
Mounting depth
15
mm
Net weight
0.06
kg
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1″Full-range
fS
120 Hz
SD
9.0 cm²
120 - 15000 Hz
QTS
0.35
xmax
2.3 mm
SPL1W
78 dB
Bl/√RE
1.68
Pmax
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fS
180 Hz
SD
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180 - 20000 Hz
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fS
120 Hz
SD
9.0 cm²
120 - 20000 Hz
QTS
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xmax
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SPL1W
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