Speaker Subwoofer In 30 Cm Case, 250 W, Sbg-1244bp Alpine Sbg1244bp - Subwoofer Boxes And Enclosures - AliExpress
Alpine W12S4 | 750 Watt 12" Single 4-ohm Car Subwoofer
File:Alpine SBE-12BR and V-Power MRP-M350.jpg - Wikimedia Commons
Car Enclosed Subwoofer 10 "25 Cm Alpine Sbe-1044br Sound Electronics Columns 87.1db Subwoofers For Cars Acoustics Auto Audio Parts Components Speaker - Subwoofers - AliExpress
Alpine ALP SWG-1244, Subwoofer (800 W) - kaufen bei digitec