Jensen Vintage Ceramic C12Q

16Ω

Guitar Speaker

12″ / 306 mm
Nominal diameter
86 Hz
Resonance
1.99
Q factor
98 dB
Sensitivity
± 1.5 mm
Linear excursion
70 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
97.5
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
86.0
Hz
Mechanical quality factor
QMS
10.16
Electrical quality factor
QES
2.47
Total quality factor
QTS
1.99

Large signal parameters

Maximum linear excursion
xmax
1.5
mm
Air volume displaced at xmax
VD
74
cm³
Power handling
P
35
W
Program power
Pmax
70
W

Voice Coil

Nominal impedance
Z
16
Ω
DC resistance
RE
12.0
Ω
Inductance (1kHz)
LE
0.95
mH
VC Diameter
32
mm
Winding height
HVC
9
mm
Winding material
Copper
Former material
Epotex

Magnet

Flux density
B
0.92
T
Force factor
Bl
8.16
N/A
Motor constant
Bl/√RE
2.36
N/√W
Air gap height
HAG
6
mm
Weight
0.426
kg
Material
Ferrite

Diaphragm

Effective diameter
250
mm
Effective area
SD
491
cm²
Moving mass
MMS
24.3
g
Moving mass (without air load)
MMD
16.5
g
Material
Paper

Suspensions

Stiffness
KMS
7.3
N/mm
Compliance
CMS
137
µm/N
Equivalent volume to the compliance
VAS
46.3
L
Mechanical resistance
RMS
1.29
N·s/m
Surround material
Integrated Paper

Dimensions

Nominal diameter
12
306
mm
Overall diameter
306
mm
Volume occupied by the driver (estimated)
0.74
L
Net weight
1.8
kg
Frame material
Pressed Sheet
Jensen C12Q Dimensions

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