Dual voice coil ; Stamped-steel slim-mount frame with encapsulated motor; Vented motor structure for optimal thermal heat dissipation; Polycotton spider with spaced, woven-in tinsel wires; Oversized parabolic dust cap for extreme rigidity ; Unimount gasket surround; 12 dual 2ohm ; 1,200W max ; 250W RMS ; Mounting depth: 3.81; Each;