Amazon.com: Alpine S-W8D4 Car Audio Type S Dual 4 Ohm 600 Watt 8" Subwoofers with Sub Install Kit Package : Electronics
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SWD-355 - Subwoofer Amplificato in Cassa da 12" (30cm) – Alpine Italia Webshop
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Alpine Electronics PWE-S8 - Subwoofer Amplificato in Cassa da 8" (20cm) con Remote Sensing : Amazon.it: Elettronica
Alpine SBG-844BR Subwoofer in Cassa Bass Reflex da 8'' : Amazon.it: Elettronica
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1 SUBWOOFER amplificato in cassa compatibile con ALPINE PWE-S8 PWES8 da 20 cm 200 mm 8" 120 watt rms 240 watt max sub auto sotto sedile + telecomando, 1 pezzo : Amazon.it: Elettronica