Eminence KAPPALITE 3015LF-4

Subwoofer

15″ / 381 mm
Nominal diameter
47 Hz
Resonance
0.47
Q factor
95 dB
Sensitivity
± 10.65 mm
Linear excursion
1100 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
95.3
dB
Frequency response
36 - 1300
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
47.0
Hz
Mechanical quality factor
QMS
10.19
Electrical quality factor
QES
0.49
Total quality factor
QTS
0.47

Large signal parameters

Maximum linear excursion
xmax
10.65
mm
Maximum excursion before damage
xlim
17.0
mm
Air volume displaced at xmax
VD
939
cm³
Power handling
P
550
W
Program power
Pmax
1100
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.9
Ω
Inductance (1kHz)
LE
0.65
mH
VC Diameter
76
mm
Winding material
Copper
Former material
Kapton

Magnet

Force factor
Bl
15.75
N/A
Motor constant
Bl/√RE
8.03
N/√W
Air gap height
HAG
9.3
mm
Weight
0.312
kg
Material
Neodymium

Diaphragm

Effective diameter
335
mm
Effective area
SD
881
cm²
Moving mass
MMS
106
g
Moving mass (without air load)
MMD
88
g
Material
Treated paper

Suspensions

Stiffness
KMS
9.09
N/mm
Compliance
CMS
110
µm/N
Equivalent volume to the compliance
VAS
119
L
Mechanical resistance
RMS
3.07
N·s/m
Surround material
Cloth

Dimensions

Nominal diameter
15
381
mm
Overall diameter
389
mm
Baffle cutout diameter
356
mm
Overall depth
184
mm
Volume occupied by the driver
2.56
L
Net weight
3.9
kg
Frame material
Die-cast aluminum
Eminence KAPPALITE 3015LF-4 SPL & Impedance

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