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
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
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
SEAS OR003-04 FL4RCN/F SPL & Impedance
SEAS OR003-04 FL4RCN/F Dimensions

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