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 dustcap for extreme rigidity ; Unimount gasket surround; 10 dual 4ohm ; 800W max ; 200W RMS ; Mounting depth: 3.54; Each;