Celestion TN0820
Mid Bass
8″ / 203 mm
Nominal diameter
62 Hz
Resonance
0.28
Q factor
93 dB
Sensitivity
± 2 mm
Linear excursion
300 W
Program Power
Discontinued
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.0
dB
Frequency response
60 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
61.9
Hz
Mechanical quality factor
QMS
1.56
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.28
Large signal parameters
Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
45
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.65
mH
VC Diameter
50
mm
Winding height
HVC
12
mm
Winding material
Round copper
Former material
Polyimide
Magnet
Force factor
Bl
11.79
N/A
Motor constant
Bl/√RE
4.97
N/√W
Air gap height
HAG
8
mm
Material
Neodymium
Diaphragm
Effective diameter
170
mm
Effective area
SD
227
cm²
Moving mass
MMS
22
g
Moving mass (without air load)
MMD
19.5
g
Material
Kevlar loaded paper
Suspensions
Stiffness
KMS
3.33
N/mm
Compliance
CMS
300
µm/N
Equivalent volume to the compliance
VAS
21.9
L
Mechanical resistance
RMS
5.47
N·s/m
Surround material
Cloth-sealed
Dimensions
Nominal diameter
8
″
203
mm
Overall diameter
208
mm
Baffle cutout diameter
183
mm
Overall depth
100
mm
Volume occupied by the driver (estimated)
0.61
L
Net weight
1.3
kg
Frame material
Pressed steel
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8.25″Mid Bass
fS
59 Hz
SD
214 cm²
59 - 3000 Hz
QTS
0.31
xmax
2.0 mm
SPL1W
92 dB
Bl/√RE
5.43
Pmax
350 W
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10″Woofer
fS
59 Hz
SD
320 cm²
60 - 2500 Hz
QTS
0.26
xmax
6.0 mm
SPL1W
94 dB
Bl/√RE
8.03
Pmax
600 W
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