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
JBL MS-10SD2 SLIM | Sub Woofer Speakers | Croooober
JBL CLUB WS1000 - 10” SHALLOW MOUNT SUBWOOFER w/ SSI 2 0R 4 OHM SELECTABLE 50036331593 | eBay