Skar Audio EVL-18 D2

2x2Ω
2x4Ω

Subwoofer

18″ / 465 mm
Nominal diameter
31 Hz
Resonance
0.42
Q factor
94 dB
Sensitivity
± 23.5 mm
Linear excursion
2500 W
Program Power
Skar Audio EVL-18 D2 SubwooferSkar Audio EVL-18 D2 SubwooferSkar Audio EVL-18 D2 Subwoofer
Excursion
Velocity
SPL
Phase
Group delay
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
93.7
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
31.2
Hz
Mechanical quality factor
QMS
5.65
Electrical quality factor
QES
0.44
Total quality factor
QTS
0.42

Large signal parameters

Maximum linear excursion
xmax
23.5
mm
Air volume displaced at xmax
VD
2736
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
4.2
Ω
Inductance (1kHz, in series, estimated)
LE
2.35
mH
VC Diameter
76
mm
Winding material
Copper-clad aluminium

Magnet

Force factor (in series)
Bl
40.0
N/A
Motor constant
Bl/√RE
13.8
N/√W
Diameter
188
mm

Diaphragm

Effective diameter
385
mm
Effective area
SD
1164
cm²
Moving mass
MMS
424
g
Moving mass (without air load)
MMD
395.7
g
Material
Pressed Paper

Suspensions

Stiffness
KMS
23.81
N/mm
Compliance
CMS
42
µm/N
Equivalent volume to the compliance
VAS
81
L
Mechanical resistance
RMS
14.71
N·s/m
Surround material
Foam

Dimensions

Nominal diameter
18
″
465
mm
Overall diameter
465
mm
Baffle cutout diameter
437
mm
Overall depth
296
mm
Flange thickness
36
mm
Mounting depth
260
mm
Volume occupied by the driver (estimated)
11.0
L
Impedance
Step response
Tone Burst

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