Skar Audio EVL-12 D2

2x2Ω
2x4Ω

Subwoofer

12″ / 318 mm
Nominal diameter
32 Hz
Resonance
0.42
Q factor
85 dB
Sensitivity
± 23.5 mm
Linear excursion
2500 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
85.1
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
32.2
Hz
Mechanical quality factor
QMS
4.83
Electrical quality factor
QES
0.51
Total quality factor
QTS
0.42

Large signal parameters

Maximum linear excursion
xmax
23.5
mm
Air volume displaced at xmax
VD
1108
cm³
Power handling
P
1250
W
Program power
Pmax
2500
W

Voice Coil

Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
7.0
Ω
Inductance (1kHz, in series, estimated)
LE
2.9
mH
VC Diameter
76
mm
Winding material
Copper-clad aluminium

Magnet

Force factor (in series)
Bl
27.0
N/A
Motor constant
Bl/√RE
10.2
N/√W
Diameter
180
mm

Diaphragm

Effective diameter
245
mm
Effective area
SD
471
cm²
Moving mass
MMS
260.8
g
Moving mass (without air load)
MMD
253.1
g
Material
Pressed Paper

Suspensions

Stiffness
KMS
16.39
N/mm
Compliance
CMS
61
µm/N
Equivalent volume to the compliance
VAS
19.1
L
Mechanical resistance
RMS
10.92
N·s/m
Surround material
Foam

Dimensions

Nominal diameter
12
318
mm
Overall diameter
318
mm
Baffle cutout diameter
285
mm
Overall depth
226
mm
Flange thickness
33
mm
Mounting depth
193
mm
Volume occupied by the driver (estimated)
4.6
L

Export this driver to a simulation software:

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fS
42 Hz
SD
529 cm²
QTS
0.48
xmax
20.0 mm
SPL1W
87 dB
Bl/√RE
11
Pmax
2500 W