Fountek FR89EX - user opinions

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Summary: Type: Full-range; Size: 3.5"; RMS Power: 25 W; Max Power: 50 W; Sensitivity: 85 dB; Impedance: 8?�; DC resistance: 5.8 ?�; Frequency range: 70 - 20000 Hz; Resonant frequency: 97 Hz; Total Q factor: 0.52; Suspension equivalent air volume: 1.4 L; Maximum linear excursion: 5 mm; ...

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