Alpine - SWR-12D4 Subwoofer Type-R da 30 cm (12′') doppia bobina 4Ω + 4Ω
Alpine SWR-8D2 | Subwoofer - Subwoofer
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Alpine - SWT-12S4 Subwoofer Bass reflex a tubo da 12“ (30cm) (4Ohm)