Eminence DEFINIMAX 4015LF

Subwoofer

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
Discard
Apply
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
Winding material
Copper
Former material
Polyimide

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
Material
Ferrite

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
Surround material
Cloth

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
Eminence DEFINIMAX 4015LF SPL & Impedance

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