Eminence DELTA-12LFC
4Ω
8ΩBass Guitar Speaker
12″ / 305 mm
Nominal diameter
52 Hz
Resonance
0.44
Q factor
94 dB
Sensitivity
± 4.8 mm
Linear excursion
1000 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.1
dB
Frequency response
45 - 2300
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
52.0
Hz
Mechanical quality factor
QMS
8.21
Electrical quality factor
QES
0.47
Total quality factor
QTS
0.44
Large signal parameters
Maximum linear excursion
xmax
4.8
mm
Maximum excursion before damage
xlim
13.5
mm
Air volume displaced at xmax
VD
243
cm³
Power handling
P
500
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz)
LE
0.94
mH
VC Diameter
64
mm
Winding material
Copper
Former material
Kapton
Magnet
Force factor
Bl
10.9
N/A
Motor constant
Bl/√RE
6.09
N/√W
Air gap height
HAG
9.5
mm
Weight
1.588
kg
Material
Ferrite
Diaphragm
Effective diameter
254
mm
Effective area
SD
507
cm²
Moving mass
MMS
53
g
Moving mass (without air load)
MMD
44.9
g
Material
Treated paper
Suspensions
Stiffness
KMS
5.88
N/mm
Compliance
CMS
170
µm/N
Equivalent volume to the compliance
VAS
63.7
L
Mechanical resistance
RMS
2.11
N·s/m
Surround material
Cloth
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
306
mm
Baffle cutout diameter
281
mm
Overall depth
136
mm
Volume occupied by the driver
2.25
L
Net weight
5.35
kg
Frame material
Pressed steel
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fS
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SD
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QTS
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xmax
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Bl/√RE
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fS
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SD
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