6.5″ / 165 mm
Nominal diameter
50 Hz
Resonance
0.43
Q factor
80 dB
Sensitivity
± 10 mm
Linear excursion
500 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
79.8
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
50.4
Hz
Mechanical quality factor
QMS
5.21
Electrical quality factor
QES
0.47
Total quality factor
QTS
0.43
Large signal parameters
Maximum linear excursion
xmax
10.0
mm
Maximum excursion before damage
xlim
15.0
mm
Air volume displaced at xmax
VD
120
cm³
Power handling
P
250
W
Program power
Pmax
500
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.8
Ω
Inductance (1kHz, in series)
LE
1.93
mH
VC Diameter
50
mm
Winding height
HVC
30
mm
Magnet
Force factor (in series)
Bl
15.3
N/A
Motor constant
Bl/√RE
7.85
N/√W
Diameter
134
mm
Height
40
mm
Weight
2.268
kg
Diaphragm
Effective diameter
124
mm
Effective area
SD
120
cm²
Moving mass
MMS
91.5
g
Moving mass (without air load)
MMD
90.4
g
Material
Non-pressed Paper
Suspensions
Stiffness
KMS
6.37
N/mm
Compliance
CMS
157
µm/N
Equivalent volume to the compliance
VAS
3.2
L
Mechanical resistance
RMS
5.56
N·s/m
Spider material
Dual Nomex
Dimensions
Nominal diameter
6.5
″
165
mm
Overall diameter
179
mm
Baffle cutout diameter
150
mm
Mounting depth
117
mm
Volume occupied by the driver (estimated)
2.4
L
Net weight
5.6
kg
Frame material
Diecast Aluminium
Similar subwoofers to ESX QXE6D2
8″Subwoofer
fS
46 Hz
SD
201 cm²
QTS
0.45
xmax
13.0 mm
SPL1W
84 dB
Bl/√RE
9.75
Pmax
1500 W
8″Subwoofer
fS
46 Hz
SD
216 cm²
QTS
0.45
xmax
13.0 mm
SPL1W
81 dB
Bl/√RE
9.19
Pmax
1500 W
8″Subwoofer
fS
44 Hz
SD
193 cm²
55 - 500 Hz
QTS
0.47
xmax
13.0 mm
SPL1W
84 dB
Bl/√RE
8.2
Pmax
800 W