Fostex FE168EΣ

Full-range

6.5″ / 160 mm
Nominal diameter
51 Hz
Resonance
0.26
Q factor
92 dB
Sensitivity
± 1.6 mm
Linear excursion
80 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
92.4
dB
Frequency response
51 - 21000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
51.0
Hz
Mechanical quality factor
QMS
5.33
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.26

Large signal parameters

Maximum linear excursion
xmax
1.6
mm
Air volume displaced at xmax
VD
18
cm³
Power handling
P
27
W
Program power
Pmax
80
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.8
Ω
Inductance (1kHz)
LE
0.06
mH
VC Diameter
30
mm

Magnet

Force factor
Bl
8.0
N/A
Motor constant
Bl/√RE
3.07
N/√W
Weight
0.721
kg
Material
Ferrite

Diaphragm

Effective diameter
120
mm
Effective area
SD
113
cm²
Moving mass
MMS
8.7
g
Moving mass (without air load)
MMD
7.7
g

Suspensions

Stiffness
KMS
0.78
N/mm
Compliance
CMS
1278
µm/N
Equivalent volume to the compliance
VAS
23.7
L
Mechanical resistance
RMS
0.52
N·s/m

Dimensions

Nominal diameter
6.5
160
mm
Overall diameter
190
mm
Baffle cutout diameter
155
mm
Overall depth
88
mm
Volume occupied by the driver (estimated)
0.83
L
Net weight
2.6
kg
Fostex FE168EΣ SPL & Impedance
Fostex FE168EΣ Dimensions

Export this driver to a simulation software:

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