Fostex FF165WK
Full-range
6.3″ / 160 mm
Nominal diameter
50 Hz
Resonance
0.34
Q factor
92 dB
Sensitivity
± 1.85 mm
Linear excursion
90 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 92.3
- dB
- Frequency response
- 50 - 21000
- Hz
- Resonance frequency (free air)
- fS
- 50.0
- Hz
- Mechanical quality factor
- QMS
- 4.19
- Electrical quality factor
- QES
- 0.37
- Total quality factor
- QTS
- 0.34
- Maximum linear excursion
- xmax
- 1.85
- mm
- Air volume displaced at xmax
- VD
- 24
- cm³
- Power handling
- P
- 30
- W
- Program power
- Pmax
- 90
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 6.5
- Ω
- Inductance (1kHz)
- LE
- 0.06
- mH
- VC Diameter
- 35
- mm
- Force factor
- Bl
- 7.23
- N/A
- Motor constant
- Bl/√RE
- 2.83
- N/√W
- Weight
- 0.848
- kg
- Effective diameter
- 130
- mm
- Effective area
- SD
- 132
- cm²
- Moving mass
- MMS
- 9.5
- g
- Moving mass (without air load)
- MMD
- 8.4
- g
- Stiffness
- KMS
- 0.94
- N/mm
- Compliance
- CMS
- 1068
- µm/N
- Equivalent volume to the compliance
- VAS
- 27.8
- L
- Mechanical resistance
- RMS
- 0.71
- N·s/m
- Nominal diameter
- 6.3
- ″
- 160
- mm
- Overall diameter
- 166
- mm
- Baffle cutout diameter
- 146
- mm
- Overall depth
- 77
- mm
- Volume occupied by the driver (estimated)
- 0.58
- L
- Net weight
- 1.95
- kg