6.5″ / 165 mm
Nominal diameter
49 Hz
Resonance
0.65
Q factor
80 dB
Sensitivity
± 15 mm
Linear excursion
1500 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
79.5
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
49.2
Hz
Mechanical quality factor
QMS
3.66
Electrical quality factor
QES
0.80
Total quality factor
QTS
0.65
Large signal parameters
Maximum linear excursion
xmax
15.0
mm
Air volume displaced at xmax
VD
214
cm³
Power handling
P
750
W
Program power
Pmax
1500
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
4.0
Ω
Inductance (1kHz, in series, estimated)
LE
0.82
mH
VC Diameter
51
mm
Former material
Anodized aluminum
Magnet
Force factor (in series)
Bl
11.34
N/A
Motor constant
Bl/√RE
5.67
N/√W
Diaphragm
Effective diameter
135
mm
Effective area
SD
143
cm²
Moving mass
MMS
82.8
g
Moving mass (without air load)
MMD
81.4
g
Material
Non-Pressed paper
Suspensions
Stiffness
KMS
7.87
N/mm
Compliance
CMS
127
µm/N
Equivalent volume to the compliance
VAS
3.68
L
Mechanical resistance
RMS
6.99
N·s/m
Dimensions
Nominal diameter
6.5
″
165
mm
Overall diameter
183
mm
Baffle cutout diameter
152
mm
Mounting depth
132
mm
Volume occupied by the driver (estimated)
0.65
L
Similar subwoofers to DB Drive WDX6.5G2.2
8″Subwoofer
fS
50 Hz
SD
228 cm²
QTS
0.57
xmax
20.0 mm
SPL1W
80 dB
Bl/√RE
8.84
Pmax
2500 W
6.5″Subwoofer
fS
52 Hz
SD
142 cm²
QTS
0.61
xmax
15.0 mm
SPL1W
80 dB
Bl/√RE
6.6
Pmax
1500 W
6.5″Woofer
fS
49 Hz
SD
123 cm²
40 - 500 Hz
QTS
0.62
xmax
10.5 mm
SPL1W
81 dB
Bl/√RE
5.09
Pmax
300 W