DB Drive G7 8.4

2x2Ω
2x4Ω

Subwoofer

8″ / 203 mm
Nominal diameter
50 Hz
Resonance
0.57
Q factor
80 dB
Sensitivity
± 20 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
80.0
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
50.1
Hz
Mechanical quality factor
QMS
2.16
Electrical quality factor
QES
0.78
Total quality factor
QTS
0.57

Large signal parameters

Maximum linear excursion
xmax
20.0
mm
Air volume displaced at xmax
VD
456
cm³
Power handling
P
1250
W
Program power
Pmax
2500
W

Voice Coil

Nominal impedance
Z
2 x 4
Ω
DC resistance (in series)
RE
6.0
Ω
Inductance (1kHz, in series, estimated)
LE
2.06
mH
VC Diameter
76
mm

Magnet

Force factor (in series)
Bl
21.66
N/A
Motor constant
Bl/√RE
8.84
N/√W
Material
Ferrite

Diaphragm

Effective diameter
170
mm
Effective area
SD
228
cm²
Moving mass
MMS
192.5
g
Moving mass (without air load)
MMD
189.8
g

Suspensions

Stiffness
KMS
19.23
N/mm
Compliance
CMS
52
µm/N
Equivalent volume to the compliance
VAS
3.83
L
Mechanical resistance
RMS
28.1
N·s/m
Surround material
Foam

Dimensions

Nominal diameter
8
203
mm
Overall diameter
233
mm
Baffle cutout diameter
190
mm
Mounting depth
187
mm
Volume occupied by the driver (estimated)
1.2
L
Frame material
Aluminium

Export this driver to a simulation software:

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