EASTECH FSI511540-4802

Full-range

4″ / 102 mm
Nominal diameter
83 Hz
Resonance
1.14
Q factor
84 dB
Sensitivity
± 3.2 mm
Linear excursion
10 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
84.2
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
83.0
Hz
Mechanical quality factor
QMS
5.03
Electrical quality factor
QES
1.47
Total quality factor
QTS
1.14

Large signal parameters

Maximum linear excursion
xmax
3.2
mm
Air volume displaced at xmax
VD
18
cm³
Power handling
P
5
W
Program power
Pmax
10
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.4
Ω
Inductance (1kHz)
LE
0.09
mH
VC Diameter
20
mm
Winding height
HVC
10.4
mm
Winding material
PESVW
Former material
Aluminum

Magnet

Force factor
Bl
3.79
N/A
Motor constant
Bl/√RE
1.39
N/√W
Air gap height
HAG
4
mm
Material
Ferrite

Diaphragm

Effective diameter
84
mm
Effective area
SD
55
cm²
Moving mass
MMS
5.5
g
Moving mass (without air load)
MMD
5.2
g
Material
Paper

Suspensions

Stiffness
KMS
1.49
N/mm
Compliance
CMS
670
µm/N
Equivalent volume to the compliance
VAS
2.84
L
Mechanical resistance
RMS
0.57
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
4
102
mm
Volume occupied by the driver (estimated)
0.19
L
Net weight
0.503
kg
Frame material
Steel
EASTECH FSI511540-4802 SPL & Impedance
EASTECH FSI511540-4802 Dimensions

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