Pair of JBL GX1200 12 inch 1000 Watts Peak Each 4 Ohm SVC Car Subwoofers** | eBay
JBL STAGE 1210 12 inch 1000W Woofer for sale online | eBay
CS1214 | 30 cm (12 inch) subwoofer, with double magnet suitable for enclosed, bass reflex and bandpass boxes
Amazon.com: JBL SUBBP12AM - 450 Watts (150W RMS) 12” Amplified 12 in. Ported Subwoofer with Sub Level Control and Distortion Free Bass with Gravity Magnet Phone Holder Bundle : Electronics