Amazon.com: JBL Club WS1200 12" Shallow Mount subwoofer w/SSI (Selectable Smart Impedance) Switch from 2 to 4 ohm Bundled with Alphasonik Earbuds : Electronics
JBL AC299 12" 2-Way Full-Range Loudspeaker with 90 deg x 90 deg Coverage, Black - ProAudio.com
JBL AM5212/00 12-inch 2-way Loudspeaker - Black | Sweetwater
JBL GX Series 12" Single-Voice-Coil 4-Ohm Subwoofer Black GX1200 - Best Buy
JBL Stage 122 | 250W RMS 12" Single 4-Ohm Car Audio Subwoofer
JBL Stadium 600 High-Performance Class D 1500 Watt Peak Power Car Audio Mono Amplifier Bundle with 2x JBL Club 1224 12" 1100 Watts Peak Car Audio Subwoofer with Selectable Smart Impedance - Road Entertainment
JBL Club Series 12" 1100 Watts Selectable 2 or 4 Ohm Subwoofer CLUB 1224 - Walmart.com
JBL AM7212/64 2-Way Loudspeaker System with 1 x 12 " LF Speaker
JBL Synthesis SSW-2 Dual 12" Passive Subwoofer – Digital Media Systems, Inc.
JBL MD52 2-Way Full-Range Medium-Power Loudspeaker System with 1 x 12" LF - Authorized Dealer
Amazon.com: JBL S2-1224 - 12” Subwoofer with enclosure and SSI™ (Selectable Smart Impedance) switch from 2 to 4 ohm, Black (S2-1224SS) : Electronics
JBL Stage 1220B Ported enclosure with two 12" subwoofers
JBL - Two CLUB1224AM Club Series 12" Subwoofers with SSi Selectable Impedance - 2 or 4 Ohm - Creative Audio
JBL Arena X 12" 2-Ohm Component Subwoofer - Black for sale online | eBay