Celestion F12-X200

Guitar Speaker

12″ / 305 mm
Nominal diameter
70 Hz
Resonance
0.78
Q factor
96 dB
Sensitivity
400 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
96.3
dB
Frequency response
60 - 20000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
69.8
Hz
Mechanical quality factor
QMS
12.01
Electrical quality factor
QES
0.83
Total quality factor
QTS
0.78

Large signal parameters

Power handling
P
200
W
Program power
Pmax
400
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.9
Ω
Inductance (1kHz)
LE
0.1
mH
VC Diameter
51
mm
Winding material
Round copper

Magnet

Force factor
Bl
12.5
N/A
Motor constant
Bl/√RE
5.14
N/√W
Diameter
170
mm
Height
67
mm
Material
Ceramic

Diaphragm

Effective diameter
260
mm
Effective area
SD
569
cm²
Moving mass
MMS
50.2
g
Moving mass (without air load)
MMD
40.9
g

Suspensions

Stiffness
KMS
9.71
N/mm
Compliance
CMS
103
µm/N
Equivalent volume to the compliance
VAS
47.3
L
Mechanical resistance
RMS
1.834
N·s/m

Dimensions

Nominal diameter
12
305
mm
Overall diameter
309
mm
Baffle cutout diameter
283
mm
Overall depth
165
mm
Volume occupied by the driver (estimated)
2.3
L
Net weight
4.1
kg
Frame material
Pressed steel
Celestion F12-X200 SPL

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