Focal K2 POWER EC 165 KE

2 way

6.5″ / 165 mm
Nominal diameter
65 Hz
Resonance
0.55
Q factor
88 dB
Sensitivity
± 4.5 mm
Linear excursion
160 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
88.3
dB
Frequency response
60 - 22000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
65.0
Hz
Mechanical quality factor
QMS
7.00
Electrical quality factor
QES
0.60
Total quality factor
QTS
0.55

Large signal parameters

Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
58
cm³
Power handling
P
80
W
Program power
Pmax
160
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.0
Ω
Inductance (1kHz, estimated)
LE
0.2
mH
VC Diameter
25
mm

Magnet

Force factor
Bl
5.3
N/A
Motor constant
Bl/√RE
3.06
N/√W

Diaphragm

Effective diameter
128
mm
Effective area
SD
129
cm²
Moving mass
MMS
13.9
g
Moving mass (without air load)
MMD
12.8
g
Material
K2 Sandwich

Suspensions

Stiffness
KMS
2.33
N/mm
Compliance
CMS
430
µm/N
Equivalent volume to the compliance
VAS
10
L
Mechanical resistance
RMS
0.81
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)
0.44
L
Net weight
1.1
kg
Focal EC 165 KE SPL & Impedance
Focal EC 165 KE Dimensions

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SD
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