Celestion FTX0617
Coaxial
6.5″ / 165 mm
Nominal diameter
100 Hz
Resonance
0.74
Q factor
91 dB
Sensitivity
± 3.5 mm
Linear excursion
300 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
90.7
dB
Frequency response
100 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
100
Hz
Mechanical quality factor
QMS
3.65
Electrical quality factor
QES
0.93
Total quality factor
QTS
0.74
Large signal parameters
Maximum linear excursion
xmax
3.5
mm
Air volume displaced at xmax
VD
54
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
0.27
mH
VC Diameter
44
mm
Winding height
HVC
10
mm
Winding material
Edgewound copper clad aluminium
Former material
Glass fibre
Magnet
Force factor
Bl
6.59
N/A
Motor constant
Bl/√RE
2.8
N/√W
Air gap height
HAG
6
mm
Weight
0.88
kg
Material
Ferrite
Diaphragm
Effective diameter
140
mm
Effective area
SD
154
cm²
Moving mass
MMS
11.6
g
Moving mass (without air load)
MMD
10.1
g
Material
Kevlar loaded paper
Suspensions
Stiffness
KMS
4.55
N/mm
Compliance
CMS
220
µm/N
Equivalent volume to the compliance
VAS
7.37
L
Mechanical resistance
RMS
1.99
N·s/m
Surround material
Cloth-sealed
Dimensions
Nominal diameter
6.5
″
165
mm
Overall diameter
189
mm
Baffle cutout diameter
150
mm
Overall depth
93
mm
Volume occupied by the driver (estimated)
0.93
L
Net weight
3.0
kg
Frame material
Cast aluminium
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Export this driver to a simulation software:
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MfbLabs
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4 x 6″2 Way
fS
90 Hz
SD
103 cm²
65 - 21000 Hz
QTS
0.79
xmax
2.0 mm
SPL1W
90 dB
Bl/√RE
2.09
Pmax
80 W
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6.5″Coaxial
fS
97 Hz
SD
143 cm²
95 - 20000 Hz
QTS
0.69
xmax
3.9 mm
SPL1W
90 dB
Bl/√RE
2.92
Pmax
300 W
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8″Low frequency
fS
90 Hz
SD
214 cm²
90 - 7000 Hz
QTS
0.58
xmax
1.5 mm
SPL1W
92 dB
Bl/√RE
4.35
Pmax
400 W