DB Drive WDX15 7KD2

2x2Ω
2x4Ω

Subwoofer

15″ / 381 mm
Nominal diameter
33 Hz
Resonance
0.39
Q factor
88 dB
Sensitivity
7000 W
Program Power
Discontinued
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
88.1
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
32.6
Hz
Mechanical quality factor
QMS
6.70
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.39

Large signal parameters

Power handling
P
3500
W
Program power
Pmax
7000
W

Voice Coil

Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
4.0
Ω
Inductance (1kHz, in series, estimated)
LE
2.25
mH

Magnet

Force factor (in series)
Bl
30.33
N/A
Motor constant
Bl/√RE
15.2
N/√W

Diaphragm

Effective diameter
310
mm
Effective area
SD
755
cm²
Moving mass
MMS
428.2
g
Moving mass (without air load)
MMD
413.2
g

Suspensions

Stiffness
KMS
19.64
N/mm
Compliance
CMS
51
µm/N
Equivalent volume to the compliance
VAS
41.2
L
Mechanical resistance
RMS
13.08
N·s/m

Dimensions

Nominal diameter
15
381
mm
Volume occupied by the driver (estimated)
4.3
L

Export this driver to a simulation software:

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MTX Audio RFL15 Subwoofer
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fS
35 Hz
SD
838 cm²
26 - 500 Hz
QTS
0.38
xmax
15.0 mm
SPL1W
88 dB
Bl/√RE
18
Pmax
10500 W