JBL Club 1224AM, Club Series 12" 2 Ohm or 4 Ohm Car Subwoofer w/SSI – AVLeaderz
S2-1224 | 12" car audio subwoofers
Best Buy: JBL 450W 10" Single-Voice-Coil SSI Subwoofer Black / Orange S31024
JBL STADIUM122SSI 12" High Performance Automotive Audio Subwoofer with Selectable Impedance - Creative Audio
S3-1224 | 12" (300mm) high-performance car audio subwoofer
1 Pair (QTY 2) of JBL STADIUM122SSI 12” High Performance 1350 Watts Peak Power Car Audio Subwoofers with SSI (Selectable Smart Impedance) - Road Entertainment
Amazon.com: JBL S2-1224 SSI Car Subwoofer : Electronics