15″ / 381 mm
Nominal diameter
40 Hz
Resonance
0.52
Q factor
93 dB
Sensitivity
± 9 mm
Linear excursion
2400 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.0
dB
Frequency response
39 - 1200
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
40.0
Hz
Mechanical quality factor
QMS
11.94
Electrical quality factor
QES
0.54
Total quality factor
QTS
0.52
Large signal parameters
Maximum linear excursion
xmax
9.0
mm
Maximum excursion before damage
xlim
15.5
mm
Air volume displaced at xmax
VD
771
cm³
Power handling
P
1200
W
Program power
Pmax
2400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
1.48
mH
VC Diameter
102
mm
Magnet
Force factor
Bl
18.14
N/A
Motor constant
Bl/√RE
7.97
N/√W
Air gap height
HAG
9.5
mm
Weight
3.09
kg
Diaphragm
Effective diameter
330
mm
Effective area
SD
856
cm²
Moving mass
MMS
137
g
Moving mass (without air load)
MMD
119.6
g
Material
Water resistant paper
Suspensions
Stiffness
KMS
9.09
N/mm
Compliance
CMS
110
µm/N
Equivalent volume to the compliance
VAS
112
L
Mechanical resistance
RMS
2.88
N·s/m
Dimensions
Nominal diameter
15
″
381
mm
Overall diameter
386
mm
Baffle cutout diameter
356
mm
Overall depth
167
mm
Volume occupied by the driver
4.31
L
Net weight
10.75
kg
Frame material
Die-cast aluminum
Similar subwoofers to Eminence DEFINIMAX 4015LF
18″Low frequency
fS
45 Hz
SD
1225 cm²
35 - 1000 Hz
QTS
0.59
xmax
4.9 mm
SPL1W
92 dB
Bl/√RE
11
Pmax
3400 W
18″Subwoofer
fS
38 Hz
SD
1164 cm²
35 - 700 Hz
QTS
0.43
xmax
8.0 mm
SPL1W
94 dB
Bl/√RE
11
Pmax
2400 W
15″Subwoofer
fS
39 Hz
SD
855 cm²
35 - 2000 Hz
QTS
0.45
xmax
7.0 mm
SPL1W
93 dB
Bl/√RE
7.75
Pmax
1000 W