Celestion CF1025BMB
Low frequency
10″ / 254 mm
Nominal diameter
41 Hz
Resonance
0.36
Q factor
91 dB
Sensitivity
± 6.65 mm
Linear excursion
600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
90.8
dB
Frequency response
45 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
40.9
Hz
Mechanical quality factor
QMS
7.95
Electrical quality factor
QES
0.37
Total quality factor
QTS
0.36
Large signal parameters
Maximum linear excursion
xmax
6.65
mm
Air volume displaced at xmax
VD
230
cm³
Power handling
P
300
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.0
Ω
Inductance (1kHz)
LE
1.15
mH
VC Diameter
64
mm
Winding height
HVC
17.3
mm
Winding material
Round copper
Former material
Polyimide
Magnet
Force factor
Bl
15.28
N/A
Motor constant
Bl/√RE
6.22
N/√W
Air gap height
HAG
8
mm
Weight
1.42
kg
Material
Ferrite
Diaphragm
Effective diameter
210
mm
Effective area
SD
346
cm²
Moving mass
MMS
55.9
g
Moving mass (without air load)
MMD
51.1
g
Material
Glass loaded paper (weather-resistant)
Suspensions
Stiffness
KMS
3.69
N/mm
Compliance
CMS
271
µm/N
Equivalent volume to the compliance
VAS
46.1
L
Mechanical resistance
RMS
1.804
N·s/m
Surround material
Elastomer
Dimensions
Nominal diameter
10
″
254
mm
Overall diameter
265
mm
Baffle cutout diameter
234
mm
Overall depth
125
mm
Volume occupied by the driver (estimated)
1.8
L
Net weight
4.3
kg
Frame material
Cast aluminium
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SpeakerbenchSimilar speaker drivers to Celestion CF1025BMB
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10″Subwoofer
fS
40 Hz
SD
344 cm²
40 - 2500 Hz
QTS
0.37
xmax
7.4 mm
SPL1W
90 dB
Bl/√RE
6.08
Pmax
600 W
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12″Subwoofer
fS
42 Hz
SD
528 cm²
45 - 2500 Hz
QTS
0.37
xmax
9.3 mm
SPL1W
91 dB
Bl/√RE
9.08
Pmax
1000 W
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12″Subwoofer
fS
42 Hz
SD
531 cm²
40 - 2000 Hz
QTS
0.31
xmax
9.5 mm
SPL1W
92 dB
Bl/√RE
9.78
Pmax
2000 W