Jensen Nighthawk C 12/75 NH
8Ω
16Ω
Guitar Speaker
12″ / 307 mm
Nominal diameter
88 Hz
Resonance
0.72
Q factor
99 dB
Sensitivity
± 1 mm
Linear excursion
150 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
98.9
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
88.4
Hz
Mechanical quality factor
QMS
13.18
Electrical quality factor
QES
0.76
Total quality factor
QTS
0.72
Large signal parameters
Maximum linear excursion
xmax
1.0
mm
Air volume displaced at xmax
VD
49
cm³
Power handling
P
75
W
Program power
Pmax
150
W
Voice Coil
Nominal impedance
Z
16
Ω
DC resistance
RE
12.0
Ω
Inductance (1kHz)
LE
0.81
mH
VC Diameter
44
mm
Winding height
HVC
10
mm
Winding material
Aluminum
Former material
Glass Fiber
Magnet
Flux density
B
1.29
T
Force factor
Bl
15.57
N/A
Motor constant
Bl/√RE
4.49
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
27.6
g
Moving mass (without air load)
MMD
19.7
g
Material
Paper
Suspensions
Stiffness
KMS
8.48
N/mm
Compliance
CMS
118
µm/N
Equivalent volume to the compliance
VAS
40
L
Mechanical resistance
RMS
1.16
N·s/m
Surround material
Integrated Paper
Dimensions
Nominal diameter
12
″
307
mm
Overall diameter
307
mm
Volume occupied by the driver (estimated)
1.8
L
Net weight
4.3
kg
Frame material
Pressed Sheet
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12″Guitar Speaker
fS
91 Hz
SD
520 cm²
80 - 5000 Hz
QTS
0.68
xmax
0.8 mm
SPL1W
99 dB
Bl/√RE
4.94
Pmax
240 W
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12″Guitar Speaker
fS
86 Hz
SD
507 cm²
80 - 5100 Hz
QTS
0.65
xmax
0.8 mm
SPL1W
99 dB
Bl/√RE
4.75
Pmax
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12″Guitar Speaker
fS
90 Hz
SD
520 cm²
80 - 5000 Hz
QTS
0.65
xmax
1.3 mm
SPL1W
100 dB
Bl/√RE
4.77
Pmax
250 W