Celestion CF0820BMB
Low frequency
8″ / 200 mm
Nominal diameter
51 Hz
Resonance
0.37
Q factor
90 dB
Sensitivity
± 7.25 mm
Linear excursion
500 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
90.2
dB
Frequency response
50 - 6000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
50.5
Hz
Mechanical quality factor
QMS
5.10
Electrical quality factor
QES
0.39
Total quality factor
QTS
0.37
Large signal parameters
Maximum linear excursion
xmax
7.25
mm
Air volume displaced at xmax
VD
165
cm³
Power handling
P
250
W
Program power
Pmax
500
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
0.78
mH
VC Diameter
50
mm
Winding height
HVC
18.5
mm
Winding material
Copper clad aluminium
Former material
Glass fibre
Magnet
Force factor
Bl
11.92
N/A
Motor constant
Bl/√RE
5.11
N/√W
Air gap height
HAG
8
mm
Weight
0.99
kg
Material
Ferrite
Diaphragm
Effective diameter
170
mm
Effective area
SD
227
cm²
Moving mass
MMS
32.4
g
Moving mass (without air load)
MMD
29.8
g
Material
Treated paper
Suspensions
Stiffness
KMS
3.23
N/mm
Compliance
CMS
310
µm/N
Equivalent volume to the compliance
VAS
22.4
L
Mechanical resistance
RMS
2.01
N·s/m
Surround material
Elastomer
Dimensions
Nominal diameter
8
″
200
mm
Overall diameter
215
mm
Baffle cutout diameter
187
mm
Overall depth
108
mm
Volume occupied by the driver (estimated)
1.1
L
Net weight
3.1
kg
Frame material
Cast aluminium
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
Speakerbench.png.webp)
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