Eminence LEGEND BP102-4
4Ω
8ΩBass Guitar Speaker
10″ / 254 mm
Nominal diameter
35 Hz
Resonance
0.38
Q factor
92 dB
Sensitivity
± 6.2 mm
Linear excursion
400 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
91.7
dB
Frequency response
40 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
35.0
Hz
Mechanical quality factor
QMS
10.61
Electrical quality factor
QES
0.40
Total quality factor
QTS
0.38
Large signal parameters
Maximum linear excursion
xmax
6.2
mm
Maximum excursion before damage
xlim
10.0
mm
Air volume displaced at xmax
VD
214
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
2.7
Ω
Inductance (1kHz)
LE
0.68
mH
VC Diameter
51
mm
Winding material
Copper
Former material
Polyimide
Magnet
Force factor
Bl
7.1
N/A
Motor constant
Bl/√RE
4.32
N/√W
Air gap height
HAG
7.9
mm
Weight
1.077
kg
Material
Ferrite
Diaphragm
Effective diameter
210
mm
Effective area
SD
345
cm²
Moving mass
MMS
34
g
Moving mass (without air load)
MMD
29.4
g
Material
Paper
Suspensions
Stiffness
KMS
1.59
N/mm
Compliance
CMS
630
µm/N
Equivalent volume to the compliance
VAS
104
L
Mechanical resistance
RMS
0.7
N·s/m
Surround material
Cloth
Dimensions
Nominal diameter
10
″
254
mm
Overall diameter
256
mm
Baffle cutout diameter
233
mm
Overall depth
108
mm
Volume occupied by the driver
1.17
L
Net weight
4.04
kg
Frame material
Pressed steel
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