Jensen D-Series N12D
4Ω
8Ω
Guitar Speaker
12″ / 307 mm
Nominal diameter
61 Hz
Resonance
0.39
Q factor
99 dB
Sensitivity
300 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
98.9
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
61.0
Hz
Mechanical quality factor
QMS
2.95
Electrical quality factor
QES
0.45
Total quality factor
QTS
0.39
Large signal parameters
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
0.32
mH
VC Diameter
50
mm
Winding height
HVC
10
mm
Winding material
Copper
Former material
Aluminum
Magnet
Flux density
B
1.36
T
Force factor
Bl
11.59
N/A
Motor constant
Bl/√RE
5.13
N/√W
Air gap height
HAG
8
mm
Weight
0.206
kg
Material
Neodymium
Diaphragm
Effective diameter
250
mm
Effective area
SD
491
cm²
Moving mass
MMS
30.9
g
Moving mass (without air load)
MMD
23
g
Material
Paper
Suspensions
Stiffness
KMS
4.53
N/mm
Compliance
CMS
221
µm/N
Equivalent volume to the compliance
VAS
75.3
L
Mechanical resistance
RMS
4.01
N·s/m
Surround material
Integrated Paper
Dimensions
Nominal diameter
12
″
307
mm
Overall diameter
307
mm
Volume occupied by the driver (estimated)
1.0
L
Net weight
2.4
kg
Frame material
Pressed Sheet
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Similar speaker drivers to Jensen N12D
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12″Guitar Speaker
fS
63 Hz
SD
545 cm²
65 - 3500 Hz
QTS
0.42
xmax
0.8 mm
SPL1W
99 dB
Bl/√RE
6.15
Pmax
700 W
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