Velodyne DEQ-10R Powered subwoofer with built-in room equalizer and remote at Crutchfield
Velodyne SPL 8BG2 SPL Series II 1000 Watt Subwoofer- For Repair or Parts | eBay
Best Buy: Unbranded Impact 12" 275W Subwoofer Black Ash 80-IMP12B
Velodyne Digital Drive PLUS 18 Inch Subwoofer(black)(each) Velodyne Digital Drive PLUS 18 Inch Subwoofer BLACK - $4,352.00 : New Audio & Video, New Electronics at Lowest Prices!