Celestion AN2775
Full-range
2.75″ / 70 mm
Nominal diameter
123 Hz
Resonance
0.96
Q factor
83 dB
Sensitivity
± 2.25 mm
Linear excursion
40 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
83.3
dB
Frequency response
160 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
123
Hz
Mechanical quality factor
QMS
5.41
Electrical quality factor
QES
1.17
Total quality factor
QTS
0.96
Large signal parameters
Maximum linear excursion
xmax
2.25
mm
Air volume displaced at xmax
VD
6.4
cm³
Power handling
P
20
W
Program power
Pmax
40
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
0.07
mH
VC Diameter
20
mm
Winding height
HVC
6
mm
Former material
Polyimide
Magnet
Force factor
Bl
3.06
N/A
Motor constant
Bl/√RE
1.33
N/√W
Air gap height
HAG
3
mm
Material
Neodymium
Diaphragm
Effective diameter
60
mm
Effective area
SD
28
cm²
Moving mass
MMS
2.7
g
Moving mass (without air load)
MMD
2.6
g
Material
Aluminium
Suspensions
Stiffness
KMS
1.61
N/mm
Compliance
CMS
620
µm/N
Equivalent volume to the compliance
VAS
3.57
L
Mechanical resistance
RMS
0.38
N·s/m
Surround material
Elastomer
Dimensions
Nominal diameter
2.75
″
70
mm
Overall size
71 x 71
mm
Baffle cutout diameter
66
mm
Overall depth
45
mm
Volume occupied by the driver (estimated)
0.13
L
Net weight
0.1
kg
Frame material
Glass reinforced ABS
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fS
120 Hz
SD
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100 - 8000 Hz
QTS
0.91
xmax
3.1 mm
SPL1W
84 dB
Bl/√RE
1.62
Pmax
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fS
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SD
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QTS
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xmax
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SPL1W
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Bl/√RE
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Pmax
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