DB Drive WDX8 3K

Subwoofer

8″ / 203 mm
Nominal diameter
44 Hz
Resonance
0.5
Q factor
83 dB
Sensitivity
± 12.5 mm
Linear excursion
1200 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
83.4
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
43.5
Hz
Mechanical quality factor
QMS
4.45
Electrical quality factor
QES
0.56
Total quality factor
QTS
0.50

Large signal parameters

Maximum linear excursion
xmax
12.5
mm
Air volume displaced at xmax
VD
266
cm³
Power handling
P
600
W
Program power
Pmax
1200
W

Voice Coil

Nominal impedance
Z
2 x 4
Ω
DC resistance (in series)
RE
7.2
Ω
Inductance (1kHz, in series, estimated)
LE
1.54
mH

Magnet

Force factor (in series)
Bl
17.7
N/A
Motor constant
Bl/√RE
6.6
N/√W

Diaphragm

Effective diameter
164
mm
Effective area
SD
212
cm²
Moving mass
MMS
89.2
g
Moving mass (without air load)
MMD
87
g

Suspensions

Stiffness
KMS
6.67
N/mm
Compliance
CMS
150
µm/N
Equivalent volume to the compliance
VAS
9.6
L
Mechanical resistance
RMS
5.48
N·s/m

Dimensions

Nominal diameter
8
203
mm
Volume occupied by the driver (estimated)
0.85
L

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SD
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