Jensen Electric Lightning C 12/70 EL

16Ω

Guitar Speaker

12″ / 307 mm
Nominal diameter
93 Hz
Resonance
0.88
Q factor
98 dB
Sensitivity
± 1 mm
Linear excursion
140 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
98.0
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
93.0
Hz
Mechanical quality factor
QMS
14.50
Electrical quality factor
QES
0.94
Total quality factor
QTS
0.88

Large signal parameters

Maximum linear excursion
xmax
1.0
mm
Air volume displaced at xmax
VD
49
cm³
Power handling
P
70
W
Program power
Pmax
140
W

Voice Coil

Nominal impedance
Z
16
Ω
DC resistance
RE
11.9
Ω
Inductance (1kHz)
LE
0.8
mH
VC Diameter
50
mm
Winding height
HVC
10
mm
Winding material
Aluminum
Former material
Kapton

Magnet

Flux density
B
1.15
T
Force factor
Bl
14.56
N/A
Motor constant
Bl/√RE
4.21
N/√W
Air gap height
HAG
8
mm
Weight
1.45
kg
Material
Ferrite

Diaphragm

Effective diameter
250
mm
Effective area
SD
491
cm²
Moving mass
MMS
28.3
g
Moving mass (without air load)
MMD
20.4
g
Material
Paper

Suspensions

Stiffness
KMS
9.71
N/mm
Compliance
CMS
103
µm/N
Equivalent volume to the compliance
VAS
35.3
L
Mechanical resistance
RMS
1.14
N·s/m
Surround material
Integrated Paper

Dimensions

Nominal diameter
12
307
mm
Overall diameter
307
mm
Volume occupied by the driver (estimated)
1.9
L
Net weight
4.5
kg
Frame material
Pressed Sheet
Jensen C 12/70 EL Dimensions

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