Alpine S2-W8D4 S-Series 8" subwoofer with dual 4-ohm voice coils at Crutchfield
Home cinema - amplasare subwoofer in camera - Noiz.ro
Amazon.com: DS18 SB10A 10" Shallow Subwoofer Enclosure with Built in Amplifier – Car Audio All in One Amplifier and Subwoofer Bass Package 700 Watts Power – Great Stealth Car Subwoofer in Box
King 15" Subwoofer | Car Audio Equipment | American Bass