Amazon.com: JBL S2-1224 SSI Car Subwoofer : Electronics
JBL GT-X1200 » Dream Sound
JBL GTX500 750 watt Subwoofer Amplifier for sale online | eBay
JBL GT-X1300T 1300W Bass Tube with GX-A646SI 4 Channel Power Amplifier Subwoofer Price in India - Buy JBL GT-X1300T 1300W Bass Tube with GX-A646SI 4 Channel Power Amplifier Subwoofer online at Flipkart.com
JBL GTX500 Mono subwoofer amplifier 500 watts RMS x 1 at 2 ohms GTX-500 - BNIB! | eBay
JBL GT5-10x2_GTX500 (gt510x2_gtx500) 1 Pair of 250W 10" GT Series