Jensen D-Series N12D
4Ω
8ΩGuitar Speaker
12″ / 307 mm
Nominal diameter
63 Hz
Resonance
0.37
Q factor
98 dB
Sensitivity
300 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
98.4
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
62.5
Hz
Mechanical quality factor
QMS
3.30
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.37
Large signal parameters
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz)
LE
0.22
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
10.12
N/A
Motor constant
Bl/√RE
5.75
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
34.8
g
Moving mass (without air load)
MMD
26.9
g
Material
Paper
Suspensions
Stiffness
KMS
5.38
N/mm
Compliance
CMS
186
µm/N
Equivalent volume to the compliance
VAS
63.8
L
Mechanical resistance
RMS
4.14
N·s/m
Surround material
Integrated Paper
Dimensions
Nominal diameter
12
″
307
mm
Overall diameter
307
mm
Volume occupied by the driver (estimated)
1.0
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″Full-range
fS
62 Hz
SD
531 cm²
50 - 10000 Hz
QTS
0.37
xmax
4.0 mm
SPL1W
97 dB
Bl/√RE
6.07
Pmax
400 W
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12″Woofer
fS
53 Hz
SD
531 cm²
50 - 3000 Hz
QTS
0.36
xmax
4.7 mm
SPL1W
98 dB
Bl/√RE
6.64
Pmax
500 W