JBL CLUB WS1000 10” SHALLOW MOUNT SUBWOOFER w/ SSI 2 0R 4 OHM SELECTABLE -NEW- 50036331593 | eBay
JBL STADIUM122SSI 12” 1500 Watt Peak Power Car Audio Subwoofer with SSI | eBay
JBL S2-1024SS at Onlinecarstereo.com
S3-1224 | 12" (300mm) high-performance car audio subwoofer
Amazon.com: JBL Club WS1000 - 10” shallow mount subwoofer w/SSI™ (Selectable Smart Impedance) switch from 2 to 4 ohm, Black : Electronics
JBL S2-1224 12" Series II SSI Car Subwoofer – Audio Jam Inc
S2-1224 | 12" car audio subwoofers
JBL Stadium 82SSI 1200W SSI Technology 8" Selectable 2 to 4 ohm Car Subwoofer | eBay
1 Pair (QTY 2) of JBL STADIUM122SSI 12” High Performance 1350 Watts Peak Power Car Audio Subwoofers with SSI (Selectable Smart Impedance) - Road Entertainment
JBL 1224/12 Subwoofer W /SSI(Selectable Smart Impedance) switch from 2 to 4 ohm - Wholesale
Best Buy: JBL 450W 10" Single-Voice-Coil SSI Subwoofer Black / Orange S31024
JBL CLUB1224AM Club Series 12 Inch Subwoofer with SSi Selectable Impedance - 2 or 4 Ohm - Used, Open Box - Creative Audio
Amazon.com: JBL Club WS1000 10" Shallow Mount subwoofer w/SSI (Selectable Smart Impedance) Switch from 2 to 4 ohm Bundled with Alphasonik Earbuds : Electronics