EASTECH ASDFD5550-0401

Full-range

2.75″ / 70 mm
Nominal diameter
127 Hz
Resonance
0.46
Q factor
85 dB
Sensitivity
± 2.04 mm
Linear excursion
12 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
85.0
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
127
Hz
Mechanical quality factor
QMS
10.23
Electrical quality factor
QES
0.48
Total quality factor
QTS
0.46

Large signal parameters

Maximum linear excursion
xmax
2.04
mm
Air volume displaced at xmax
VD
5.0
cm³
Power handling
P
10
W
Program power
Pmax
12
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz)
LE
0.05
mH
VC Diameter
25
mm
Winding height
HVC
7.58
mm
Winding material
Copper Clad Aluminium
Former material
Kapton

Magnet

Force factor
Bl
3.79
N/A
Motor constant
Bl/√RE
2.1
N/√W
Air gap height
HAG
3.5
mm
Material
Neodymium

Diaphragm

Effective diameter
56
mm
Effective area
SD
24
cm²
Moving mass
MMS
2.7
g
Moving mass (without air load)
MMD
2.6
g
Material
Carbon Fiber

Suspensions

Stiffness
KMS
1.7
N/mm
Compliance
CMS
590
µm/N
Equivalent volume to the compliance
VAS
0.5
L
Mechanical resistance
RMS
0.21
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
2.75
70
mm
Net weight
0.114
kg
Frame material
Steel
EASTECH ASDFD5550-0401 SPL & Impedance
EASTECH ASDFD5550-0401 Dimensions

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