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 5048239X 2279H 18-Inch Replacement Woofer for SRX828S | PSSL ProSound and Stage Lighting