Fostex FW208HS

Woofer

8″ / 200 mm
Nominal diameter
32 Hz
Resonance
0.4
Q factor
87 dB
Sensitivity
± 8.8 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
86.6
dB
Frequency response
32 - 7000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
32.0
Hz
Mechanical quality factor
QMS
12.93
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.40

Large signal parameters

Maximum linear excursion
xmax
8.8
mm
Air volume displaced at xmax
VD
181
cm³
Power handling
P
50
W
Program power
Pmax
100
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz)
LE
0.43
mH
VC Diameter
65
mm

Magnet

Force factor
Bl
10.57
N/A
Motor constant
Bl/√RE
4.14
N/√W
Weight
1.41
kg
Material
Ferrite

Diaphragm

Effective diameter
162
mm
Effective area
SD
206
cm²
Moving mass
MMS
37
g
Moving mass (without air load)
MMD
34.6
g

Suspensions

Stiffness
KMS
1.0
N/mm
Compliance
CMS
1005
µm/N
Equivalent volume to the compliance
VAS
42.7
L
Mechanical resistance
RMS
0.58
N·s/m

Dimensions

Nominal diameter
8
200
mm
Overall diameter
230
mm
Baffle cutout diameter
185
mm
Overall depth
109
mm
Volume occupied by the driver (estimated)
1.5
L
Net weight
4.62
kg
Fostex FW208HS SPL & Impedance
Fostex FW208HS Dimensions

Export this driver to a simulation software:

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SD
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