Fi Car Audio SP415 v2.1 D1
2x1Ω
2x2ΩSubwoofer
15″ / 397 mm
Nominal diameter
28 Hz
Resonance
0.48
Q factor
87 dB
Sensitivity
± 33 mm
Linear excursion
7000 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 86.9
- dB
- Resonance frequency (free air)
- fS
- 27.6
- Hz
- Mechanical quality factor
- QMS
- 6.56
- Electrical quality factor
- QES
- 0.52
- Total quality factor
- QTS
- 0.48
- Maximum linear excursion
- xmax
- 33.0
- mm
- Air volume displaced at xmax
- VD
- 2673
- cm³
- Power handling
- P
- 3500
- W
- Program power
- Pmax
- 7000
- W
- Nominal impedance
- Z
- 2 x 1
- Ω
- DC resistance (in series)
- RE
- 1.3
- Ω
- Inductance (1kHz, in series, estimated)
- LE
- 0.74
- mH
- Force factor (in series)
- Bl
- 13.7
- N/A
- Motor constant
- Bl/√RE
- 12.0
- N/√W
- Effective diameter
- 321
- mm
- Effective area
- SD
- 810
- cm²
- Moving mass
- MMS
- 434
- g
- Moving mass (without air load)
- MMD
- 417.2
- g
- Stiffness
- KMS
- 12.99
- N/mm
- Compliance
- CMS
- 77
- µm/N
- Equivalent volume to the compliance
- VAS
- 70.4
- L
- Mechanical resistance
- RMS
- 11.47
- N·s/m
- Nominal diameter
- 15
- ″
- 397
- mm
- Overall diameter
- 397
- mm
- Baffle cutout diameter
- 359
- mm
- Mounting depth
- 279
- mm
- Volume occupied by the driver
- 5.95
- L