Fostex FE168EΣ
Full-range
6.5″ / 160 mm
Nominal diameter
51 Hz
Resonance
0.26
Q factor
92 dB
Sensitivity
± 1.6 mm
Linear excursion
80 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 92.4
- dB
- Frequency response
- 51 - 21000
- Hz
- Resonance frequency (free air)
- fS
- 51.0
- Hz
- Mechanical quality factor
- QMS
- 5.33
- Electrical quality factor
- QES
- 0.27
- Total quality factor
- QTS
- 0.26
- Maximum linear excursion
- xmax
- 1.6
- mm
- Air volume displaced at xmax
- VD
- 18
- cm³
- Power handling
- P
- 27
- W
- Program power
- Pmax
- 80
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 6.8
- Ω
- Inductance (1kHz)
- LE
- 0.06
- mH
- VC Diameter
- 30
- mm
- Force factor
- Bl
- 8.0
- N/A
- Motor constant
- Bl/√RE
- 3.07
- N/√W
- Weight
- 0.721
- kg
- Material
- Ferrite
- Effective diameter
- 120
- mm
- Effective area
- SD
- 113
- cm²
- Moving mass
- MMS
- 8.7
- g
- Moving mass (without air load)
- MMD
- 7.7
- g
- Stiffness
- KMS
- 0.78
- N/mm
- Compliance
- CMS
- 1278
- µm/N
- Equivalent volume to the compliance
- VAS
- 23.7
- L
- Mechanical resistance
- RMS
- 0.52
- N·s/m
- Nominal diameter
- 6.5
- ″
- 160
- mm
- Overall diameter
- 190
- mm
- Baffle cutout diameter
- 155
- mm
- Overall depth
- 88
- mm
- Volume occupied by the driver (estimated)
- 0.83
- L
- Net weight
- 2.6
- kg