Focal K2 POWER ES 165 KE
2 way kit
6.5″ / 165 mm
Nominal diameter
64 Hz
Resonance
0.62
Q factor
88 dB
Sensitivity
± 4.5 mm
Linear excursion
200 W
Program Power
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Sensitivity (1W, 1m, infinite baffle)
SPL1W
87.5
dB
Frequency response
60 - 22000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
64.0
Hz
Mechanical quality factor
QMS
5.70
Electrical quality factor
QES
0.69
Total quality factor
QTS
0.62
Large signal parameters
Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
58
cm³
Power handling
P
100
W
Program power
Pmax
200
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz, estimated)
LE
0.22
mH
VC Diameter
32
mm
Winding material
Copper Clad Aluminium
Former material
Kapton
Magnet
Force factor
Bl
5.2
N/A
Motor constant
Bl/√RE
2.91
N/√W
Diameter
90
mm
Height
20
mm
Diaphragm
Effective diameter
128
mm
Effective area
SD
129
cm²
Moving mass
MMS
14.5
g
Moving mass (without air load)
MMD
13.4
g
Material
K2 Sandwich
Suspensions
Stiffness
KMS
2.44
N/mm
Compliance
CMS
410
µm/N
Equivalent volume to the compliance
VAS
10
L
Mechanical resistance
RMS
1.02
N·s/m
Surround material
Butyl
Dimensions
Nominal diameter
6.5
″
165
mm
Overall diameter
165
mm
Baffle cutout diameter
142
mm
Mounting depth
74
mm
Volume occupied by the driver (estimated)
0.54
L
Net weight
1.35
kg
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SpeakerbenchSimilar woofers to Focal ES 165 KE
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6.5″2 way
fS
65 Hz
SD
129 cm²
60 - 22000 Hz
QTS
0.55
xmax
4.5 mm
SPL1W
88 dB
Bl/√RE
3.06
Pmax
160 W
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6.5″2 Way Kit
fS
60 Hz
SD
136 cm²
45 - 22500 Hz
QTS
0.57
xmax
3.9 mm
SPL1W
88 dB
Bl/√RE
3.0
Pmax
315 W