Fountek FW322 4ohm
4Ω
8ΩSubwoofer
12″ / 322 mm
Nominal diameter
42 Hz
Resonance
0.36
Q factor
90 dB
Sensitivity
± 10 mm
Linear excursion
600 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 90.0
- dB
- Frequency response
- 40 - 900
- Hz
- Resonance frequency (free air)
- fS
- 41.8
- Hz
- Mechanical quality factor
- QMS
- 2.21
- Electrical quality factor
- QES
- 0.43
- Total quality factor
- QTS
- 0.36
- Maximum linear excursion
- xmax
- 10.0
- mm
- Air volume displaced at xmax
- VD
- 515
- cm³
- Power handling
- P
- 300
- W
- Program power
- Pmax
- 600
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.4
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.93
- mH
- VC Diameter
- 75
- mm
- Winding height
- HVC
- 28
- mm
- Winding material
- Copper
- Flux density
- B
- 1.0
- T
- Force factor
- Bl
- 17.0
- N/A
- Motor constant
- Bl/√RE
- 9.22
- N/√W
- Air gap height
- HAG
- 8
- mm
- Material
- Ferrite
- Effective diameter
- 256
- mm
- Effective area
- SD
- 515
- cm²
- Moving mass
- MMS
- 133.8
- g
- Moving mass (without air load)
- MMD
- 125.3
- g
- Stiffness
- KMS
- 9.26
- N/mm
- Compliance
- CMS
- 108
- µm/N
- Equivalent volume to the compliance
- VAS
- 40.6
- L
- Mechanical resistance
- RMS
- 15.88
- N·s/m
- Nominal diameter
- 12
- ″
- 322
- mm
- Overall diameter
- 317
- mm
- Overall depth
- 152
- mm
- Volume occupied by the driver (estimated)
- 3.2
- L
- Net weight
- 7.4
- kg