Alpine SWR-843D - user opinions

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Summary: Type: subwoofer; Size: 20 cm (8 in.); The number of bands: 1; Power: 350 W (nominal), 1000 watts (maximum); Frequency range: 28 - 200 Hz; Impedance: 4 Ohm; Housing: no; Number of speakers: 1; Dimensions: 200 mm; Cone material: cellulose, reinforced with Kevlar; Material suspension: Santoprene?�?�?�?�?�??�?�?�?�?�???�?�??�??�?�?�?�?�?�?�?�?�?�???????????�?�???�?�??�??�?�?�?�?�?�?�?�??�?�?�?�?�?�??�?�?�???�?�?�?�???�?�???�?�?�?�?�?�?�?�???????????�?�???�?�??�??�?�?�?�?�?�?�?�??�?�?�?�?�???�?�??�??�?�?�?�?�?�?�?�??�?�?�?�?�?�??�?�?�???�?�?�??�?�?�?�?�?�?�?�??�?�?�?�?�???�?�??�??�?�?�?�?�?�?�?�?�???�?�?�?�?�?�?�?�?�??????�??�?�?�?�?�?�???�?�???�?�?�?�?�?�??�?�?�?�?�?�?�?�?�?�????�?�?�?�?�?�?�?�???�?�?�?�?�?�?�?�?�??????�??�?�?�?�?�?�?�?????????�?�?�?�?�?�?�????�?�?�?�?�?�?�?????????�?�?�?�?�??�?�?�?�?�???�?�??�??�?�?�?�?�?�?�?�?�?�???????????�?�???�?�??�??�?�?�?�?�?�?�?�??�?�?�?�?�?�?�?�?�?�????�?�?�?�?�?�?�??�?�?�?�?�?�??�?�?�???�?�?�??????????�?�?�?�?�?�???�?�?�?�?�??�?�?�???�?�?�?????�?�?�?�?�?�?�?????�?�?�?�?�?�?�??�?�?�?�?�???�?�??�??�?�?�?�?�?�?�?�?�???�?�?�?�?�?�?�?�?�??????�??�?�?�??�?�?�?�?????????�????????�?�?�?�?�??�?�?�?�?�?�??�?�?�???�?�?�?�???�?�???�?�?�?�?�?�?�?�???????????�?�???�?�??�??�?�?�; Mounting depth: 115 mm; The installation ...

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