Fostex FE208-Sol

Full-range

8″ / 200 mm
Nominal diameter
43 Hz
Resonance
0.15
Q factor
98 dB
Sensitivity
± 1.45 mm
Linear excursion
100 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
97.7
dB
Frequency response
43 - 20000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
43.0
Hz
Mechanical quality factor
QMS
6.70
Electrical quality factor
QES
0.15
Total quality factor
QTS
0.15

Large signal parameters

Maximum linear excursion
xmax
1.45
mm
Air volume displaced at xmax
VD
30
cm³
Power handling
P
35
W
Program power
Pmax
100
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.4
Ω
Inductance (1kHz)
LE
0.2
mH
VC Diameter
36
mm

Magnet

Force factor
Bl
12.8
N/A
Motor constant
Bl/√RE
5.06
N/√W
Weight
3.672
kg

Diaphragm

Effective diameter
162
mm
Effective area
SD
206
cm²
Moving mass
MMS
14.3
g
Moving mass (without air load)
MMD
11.9
g

Suspensions

Stiffness
KMS
1.08
N/mm
Compliance
CMS
930
µm/N
Equivalent volume to the compliance
VAS
56
L
Mechanical resistance
RMS
0.58
N·s/m

Dimensions

Nominal diameter
8
200
mm
Overall diameter
230
mm
Baffle cutout diameter
186
mm
Overall depth
110
mm
Volume occupied by the driver (estimated)
2.3
L
Net weight
8.7
kg
Fostex FE208-Sol SPL & Impedance
Fostex FE208-Sol Dimensions

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