JBL S2-1224SS Subwoofer Auto Set - 1100 Watt Harman Kardon Car hifi 12" JBL Radio Bassreflex Gehäuse Auto Subwoofer - 30 cm | 300 mm, Schwarz : Amazon.de: Elektronik & Foto
12" 30cm Sub Subwoofer Bass Car Audio 7000W 4 Ohm DVC SPL SQL Competition Bass | eBay
Ground Zero GZRB30SPL 30cm SPL Subwoofer in the Case - Passive Bass Reflex Front Subwoofer, Wooden Case, Load 1350W RMS 2 x 2 Ohm : Amazon.com.be: Everything Else
Auto-Subwoofer Krüger&Matz KM300T11 30cm 800W : Amazon.de: Elektronik & Foto
Amazon.com: KICKER TRTP 12-inch (30cm) Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm, RoHS Compliant : Electronics