Eminence LEGEND GB128
Guitar Speaker
12″ / 305 mm
Nominal diameter
86 Hz
Resonance
0.65
Q factor
99 dB
Sensitivity
± 0.8 mm
Linear excursion
100 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
98.6
dB
Frequency response
80 - 5100
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
86.0
Hz
Mechanical quality factor
QMS
19.54
Electrical quality factor
QES
0.67
Total quality factor
QTS
0.65
Large signal parameters
Maximum linear excursion
xmax
0.8
mm
Air volume displaced at xmax
VD
41
cm³
Power handling
P
50
W
Program power
Pmax
100
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.4
Ω
Inductance (1kHz)
LE
0.64
mH
VC Diameter
44
mm
Winding material
Copper
Former material
Paper
Magnet
Force factor
Bl
12.0
N/A
Motor constant
Bl/√RE
4.75
N/√W
Air gap height
HAG
7.9
mm
Weight
1.077
kg
Material
Ferrite
Diaphragm
Effective diameter
254
mm
Effective area
SD
507
cm²
Moving mass
MMS
28
g
Moving mass (without air load)
MMD
19.9
g
Material
Paper
Suspensions
Stiffness
KMS
8.33
N/mm
Compliance
CMS
120
µm/N
Equivalent volume to the compliance
VAS
43.9
L
Mechanical resistance
RMS
0.77
N·s/m
Surround material
Paper
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
306
mm
Baffle cutout diameter
281
mm
Overall depth
130
mm
Volume occupied by the driver
2.0
L
Net weight
3.67
kg
Frame material
Pressed steel
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12″Guitar Speaker
fS
89 Hz
SD
520 cm²
70 - 4000 Hz
QTS
0.68
xmax
0.8 mm
SPL1W
98 dB
Bl/√RE
4.89
Pmax
300 W
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12″Guitar Speaker
fS
88 Hz
SD
491 cm²
QTS
0.72
xmax
1.0 mm
SPL1W
99 dB
Bl/√RE
4.49
Pmax
150 W
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