15″ / 381 mm
Nominal diameter
32 Hz
Resonance
0.44
Q factor
90 dB
Sensitivity
± 11 mm
Linear excursion
800 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
90.0
dB
Frequency response
30 - 500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
32.0
Hz
Mechanical quality factor
QMS
3.40
Electrical quality factor
QES
0.51
Total quality factor
QTS
0.44
Large signal parameters
Maximum linear excursion
xmax
11.0
mm
Air volume displaced at xmax
VD
829
cm³
Power handling
P
400
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
2 x 4
Ω
DC resistance (in series)
RE
7.1
Ω
Inductance (1kHz, in series, estimated)
LE
2.22
mH
VC Diameter
51
mm
Magnet
Force factor (in series)
Bl
20.4
N/A
Motor constant
Bl/√RE
7.66
N/√W
Diameter
160
mm
Diaphragm
Effective diameter
310
mm
Effective area
SD
754
cm²
Moving mass
MMS
165
g
Moving mass (without air load)
MMD
150
g
Suspensions
Stiffness
KMS
6.67
N/mm
Compliance
CMS
150
µm/N
Equivalent volume to the compliance
VAS
121
L
Mechanical resistance
RMS
9.76
N·s/m
Dimensions
Nominal diameter
15
″
381
mm
Baffle cutout diameter
356
mm
Mounting depth
170
mm
Volume occupied by the driver
3.7
L
Similar subwoofers to Skar Audio IVX-15v2 D4
15″Subwoofer
fS
31 Hz
SD
754 cm²
30 - 500 Hz
QTS
0.41
xmax
11.0 mm
SPL1W
90 dB
Bl/√RE
8.45
Pmax
800 W
15″Subwoofer
fS
33 Hz
SD
824 cm²
25 - 2100 Hz
QTS
0.43
xmax
6.0 mm
SPL1W
91 dB
Bl/√RE
8.63
Pmax
550 W
12″Subwoofer
fS
31 Hz
SD
540 cm²
35 - 4000 Hz
QTS
0.50
xmax
8.0 mm
SPL1W
90 dB
Bl/√RE
5.11
Pmax
250 W