JL Audio CLS112RG-W7AE 12&rdquo; W7 Anniversary Edition 12W7AE Subwoofer Loaded in Original JL Enclosure with Front Bar Grills Sub Woofer Box Ultra-Long Voice Coil Elevated Frame-Cooling Massive, Forced-Air-Cooled Aluminum Alloy Frame Radially Cross-Drilled Pole-Piece Solid Brushed Aluminum Rods for Woofer Protection