Challenger SD-250BX - user opinions

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Summary: Type: subwoofer; Size: 25 sm (10 inch.); The number of bands: 1; Rated power: 200 W; Maximum: 400 W; Sensitivity: 88 dB; Resonance Frequency (Fs): 38 Hz; Total Q factor (Qts): 0.47; Equivalent Volume (Vas): 36 l; Double winding: no; Closed box: yes; Phase inverter: yes; Cleat spring; ...

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Type: subwoofer; Size: 30 sm (12 inch.); The number of bands: 1; Rated power: 250 W; Maximum: 500 W; Resonance Frequency (Fs): 33 Hz; Total Q factor (Qts): 0.49; Equivalent Volume (Vas): 54 l; Double ...

Challenger SD-250FA

Type: subwoofer; Size: 25 sm (10 inch.); The number of bands: 1; Rated power: 200 W; Maximum: 400 W; Sensitivity: 88 dB; Resonance Frequency (Fs): 33 Hz; Total Q factor (Qts): 0.48; Equivalent Volume ...

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