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
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
Discard
Apply
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
Focal ES 100 KE SPL & Impedance
Focal ES 100 KE Dimensions

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