Fountek FW168K
Mid Bass
6.5″ / 168 mm
Nominal diameter
49 Hz
Resonance
0.43
Q factor
87 dB
Sensitivity
± 5 mm
Linear excursion
100 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 86.9
- dB
- Frequency response
- 70 - 4500
- Hz
- Resonance frequency (free air)
- fS
- 48.6
- Hz
- Mechanical quality factor
- QMS
- 2.32
- Electrical quality factor
- QES
- 0.52
- Total quality factor
- QTS
- 0.43
- Maximum linear excursion
- xmax
- 5.0
- mm
- Air volume displaced at xmax
- VD
- 62
- cm³
- Power handling
- P
- 50
- W
- Program power
- Pmax
- 100
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 6.8
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.5
- mH
- VC Diameter
- 36
- mm
- Winding height
- HVC
- 15
- mm
- Winding material
- Copper
- Former material
- Black Aluminum
- Flux density
- B
- 1.0
- T
- Force factor
- Bl
- 7.9
- N/A
- Motor constant
- Bl/√RE
- 3.03
- N/√W
- Air gap height
- HAG
- 5
- mm
- Material
- Ferrite
- Effective diameter
- 126
- mm
- Effective area
- SD
- 125
- cm²
- Moving mass
- MMS
- 15.7
- g
- Moving mass (without air load)
- MMD
- 14.5
- g
- Stiffness
- KMS
- 1.46
- N/mm
- Compliance
- CMS
- 684
- µm/N
- Equivalent volume to the compliance
- VAS
- 15.1
- L
- Mechanical resistance
- RMS
- 2.06
- N·s/m
- Nominal diameter
- 6.5
- ″
- 168
- mm
- Overall diameter
- 182
- mm
- Overall depth
- 87
- mm
- Volume occupied by the driver (estimated)
- 0.55
- L
- Net weight
- 1.45
- kg