Fostex FW108HS
Woofer
4″ / 100 mm
Nominal diameter
65 Hz
Resonance
0.46
Q factor
85 dB
Sensitivity
± 1.55 mm
Linear excursion
50 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 84.8
- dB
- Frequency response
- 65 - 15000
- Hz
- Resonance frequency (free air)
- fS
- 65.0
- Hz
- Mechanical quality factor
- QMS
- 8.78
- Electrical quality factor
- QES
- 0.49
- Total quality factor
- QTS
- 0.46
- Maximum linear excursion
- xmax
- 1.55
- mm
- Air volume displaced at xmax
- VD
- 7.8
- cm³
- Power handling
- P
- 20
- W
- Program power
- Pmax
- 50
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 7.2
- Ω
- Inductance (1kHz)
- LE
- 0.48
- mH
- VC Diameter
- 30
- mm
- Force factor
- Bl
- 5.98
- N/A
- Motor constant
- Bl/√RE
- 2.23
- N/√W
- Weight
- 0.5
- kg
- Material
- Ferrite
- Effective diameter
- 80
- mm
- Effective area
- SD
- 50
- cm²
- Moving mass
- MMS
- 6
- g
- Moving mass (without air load)
- MMD
- 5.7
- g
- Stiffness
- KMS
- 1.0
- N/mm
- Compliance
- CMS
- 1005
- µm/N
- Equivalent volume to the compliance
- VAS
- 3.6
- L
- Mechanical resistance
- RMS
- 0.28
- N·s/m
- Nominal diameter
- 4
- ″
- 100
- mm
- Overall diameter
- 128
- mm
- Baffle cutout diameter
- 105
- mm
- Overall depth
- 74
- mm
- Volume occupied by the driver (estimated)
- 0.44
- L
- Net weight
- 1.7
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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