OnlineCarstereo.com had some. They might be gone now. They're website is slow to tell you something is out of stock. Here's a link: JBL Power Series P1224 12" 1600W Dual 4-Ohm Subwoofer at Onlinecarstereo.com
That site has just about the worst reputation for keeping up items for sale that they don't have and can't get.OnlineCarstereo.com had some. They might be gone now. They're website is slow to tell you something is out of stock. Here's a link: JBL Power Series P1224 12" 1600W Dual 4-Ohm Subwoofer at Onlinecarstereo.com