Focal K2 POWER ES 100 KE
2 way kit
4″ / 102 mm
Nominal diameter
140 Hz
Resonance
0.9
Q factor
87 dB
Sensitivity
± 2.3 mm
Linear excursion
120 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.0
dB
Frequency response
110 - 22000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
140
Hz
Mechanical quality factor
QMS
4.20
Electrical quality factor
QES
1.10
Total quality factor
QTS
0.90
Large signal parameters
Maximum linear excursion
xmax
2.3
mm
Air volume displaced at xmax
VD
12
cm³
Power handling
P
60
W
Program power
Pmax
120
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
2.8
Ω
Inductance (1kHz, estimated)
LE
0.1
mH
VC Diameter
20
mm
Magnet
Force factor
Bl
3.3
N/A
Motor constant
Bl/√RE
1.97
N/√W
Diaphragm
Effective diameter
83
mm
Effective area
SD
54
cm²
Moving mass
MMS
4.7
g
Moving mass (without air load)
MMD
4.4
g
Material
K2 Sandwich
Suspensions
Stiffness
KMS
3.85
N/mm
Compliance
CMS
260
µm/N
Equivalent volume to the compliance
VAS
1
L
Mechanical resistance
RMS
0.98
N·s/m
Surround material
Butyl
Dimensions
Nominal diameter
4
″
102
mm
Overall diameter
102
mm
Baffle cutout diameter
93
mm
Mounting depth
39
mm
Volume occupied by the driver (estimated)
0.14
L
Net weight
0.215
kg
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SpeakerbenchSimilar speaker drivers to Focal ES 100 KE
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4″Mid-range
fS
146 Hz
SD
53 cm²
120 - 6000 Hz
QTS
0.83
xmax
2.0 mm
SPL1W
87 dB
Bl/√RE
1.96
Pmax
120 W
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4″Full-range
fS
140 Hz
SD
44 cm²
140 - 20000 Hz
QTS
0.92
xmax
1.3 mm
SPL1W
87 dB
Bl/√RE
1.53
Pmax
70 W
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