JBL S2-1224 12" Series II SSI Car Subwoofer – Audio Jam Inc
JBL Stadium 82SSI
JBL S3-1024 Series III 10" component subwoofer with impedance switching at Crutchfield
JBL Stadium 122SSI
Amazon.com: JBL S2-1224 SSI Car Subwoofer : Electronics
Amazon.com: JBL S2-1224 SSI Car Subwoofer : Electronics
JBL S2-1224SS 12" SSI 12" SSI Subwoofer Enclosure with Slipstream Port S21224SS | eBay
JBL Stadium 82SSI
JBL Stadium 102SSI
JBL CLUB1224AM Club Series 12 Inch Subwoofer with SSi Selectable Impedance - 2 or 4 Ohm - Open Box - Creative Audio
Best Buy: JBL 450W 10" Single-Voice-Coil SSI Subwoofer Black / Orange S31024
Amazon.com: JBL Club WS1000 - 10” shallow mount subwoofer w/SSI™ (Selectable Smart Impedance) switch from 2 to 4 ohm, Black : Electronics
JBL CLUB WS1000 - 10” SHALLOW MOUNT SUBWOOFER w/ SSI 2 0R 4 OHM SELECTABLE 50036331593 | eBay
S2-1224 | 12" car audio subwoofers
JBL STADIUM82SSI, Stadium Series 8" 2 Ohm or 4 Ohm Car Subwoofer w/SSI – AVLeaderz
JBL - Two CLUB1224AM Club Series 12" Subwoofers with SSi Selectable Impedance - 2 or 4 Ohm - Walmart.com
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