12W6v3-D4 - JL Audio 12" 600W Dual 4-Ohm Car Subwoofer 12W6v3D4 12W6v3-D4 - JL Audio 12" 600W Dual 4-Ohm Car Subwoofer RMS Power Output (Watts): 200W Peak Power Output (Watts): 600W New, Patent-Pending Pole Cooling System And Patented Elevated Frame Cooling Mounting Depth: 7.52"