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Fi Car Audio SP4 18v2+ D1 specifications.
Car speakers Specs << Fi Car Audio << Fi Car Audio SP4 18v2+ D1| Specification | | | Reviews |
General characteristics Fi Car Audio SP4 18v2+ D1
Type:
Subwoofer
Size:
18"
RMS Power:
3500 W
Max Power:
7000 W
Sensitivity:
89 dB
Impedance:
2x 1Ω
DC resistance:
1.3 Ω
Resonant frequency:
24 Hz
Total Q factor:
0.37
Suspension equivalent air volume:
150 L
Maximum linear excursion:
33 mm
Resonant frequency:
24.6 Hz
Electrical Q:
0.39
Mechanical Q:
9.44
Suspension equivalent air volume:
149.8 L
Force factor:
17.18 T·m
Suspension mechanical resistance:
9.4 N·s/m
Suspension mechanical compliance:
73 µm/N
Moving mass:
543.2 g
Moving mass (including airload):
573 g
Surface of the diaphragm:
1210 cm²
Effective diaphragm diameter:
39.3 cm
Maximum linear excursion:
± 33 mm
Displacement volume at Xmax:
3993 cm³
Efficiency:
0.56 %
Efficiency bandwidth product:
63
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