Fi Car Audio SP3 18 D1 - user opinions

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Summary: Type: Subwoofer; Size: 18"; RMS Power: 2500 W; Max Power: 5000 W; Sensitivity: 91 dB; Impedance: 2x 1?�; DC resistance: 1.8 ?�; Resonant frequency: 32 Hz; Total Q factor: 0.41; Suspension equivalent air volume: 128 L; Maximum linear excursion: 34 mm; Resonant frequency: 32.1 Hz; Electrical Q: 0.43; Mechanical Q: 7.41; Suspension equivalent air volume: 128.1 L; Force factor: 18.2 T?�m; Suspension mechanical resistance: 10.7 N?�s/m; Suspension mechanical compliance: 63 ?�m/N; Moving mass: 364.2 g; Moving mass (including airload): 394 g; Surface of the diaphragm: 1210 cm??; Effective diaphragm diameter: 39.3 cm; Maximum linear excursion: ?� 34 mm; Displacement volume at Xmax: 4114 cm??; Effici ...

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