Fostex FE206En

Full-range

8″ / 200 mm
Nominal diameter
45 Hz
Resonance
0.19
Q factor
98 dB
Sensitivity
± 0.8 mm
Linear excursion
90 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
97.8
dB
Frequency response
45 - 20000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
45.0
Hz
Mechanical quality factor
QMS
4.57
Electrical quality factor
QES
0.19
Total quality factor
QTS
0.19

Large signal parameters

Maximum linear excursion
xmax
0.8
mm
Air volume displaced at xmax
VD
17
cm³
Power handling
P
30
W
Program power
Pmax
90
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.8
Ω
Inductance (1kHz)
LE
0.05
mH

Magnet

Force factor
Bl
10.65
N/A
Motor constant
Bl/√RE
4.08
N/√W
Weight
1.067
kg
Material
Ferrite

Diaphragm

Effective diameter
162
mm
Effective area
SD
206
cm²
Moving mass
MMS
12.2
g
Moving mass (without air load)
MMD
10
g

Suspensions

Stiffness
KMS
0.85
N/mm
Compliance
CMS
1172
µm/N
Equivalent volume to the compliance
VAS
71
L
Mechanical resistance
RMS
0.75
N·s/m

Dimensions

Nominal diameter
8
200
mm
Overall diameter
208
mm
Baffle cutout diameter
185
mm
Overall depth
88
mm
Volume occupied by the driver (estimated)
1.0
L
Net weight
3.2
kg
Fostex FE206En SPL & Impedance
Fostex FE206En Dimensions

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