SB Acoustics SB12PFC25-4-COAX - user opinions

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Summary: Type: Coaxial; Size: 4"; RMS Power: 30 W; Max Power: 60 W; Sensitivity: 87 dB; Impedance: 4?�; DC resistance: 3.1 ?�; Resonant frequency: 58 Hz; Total Q factor: 0.33; Suspension equivalent air volume: 4.8 L; Maximum linear excursion: 5 mm; Electrical Q: 0.36; Mechanical Q: 4.07; Voice coil inductance: 0.26 mH; Force factor: 3.8 T?�m; Suspension mechanical resistance: 0.4 N?�s/m; Suspension mechanical compliance: 1660 ?�m/N; Moving mass: 4.3 g; Moving mass (including airload): 4.5 g; Surface of the diaphragm: 45 cm??; Effective diaphragm diameter: 7.6 cm; Maximum linear excursion: ?� 5 mm; Displacement volume at Xmax: 22.5 cm??; Efficiency: 0.25 %; Efficiency bandwidth product: 161; ...

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