Black nonpressed paper cone ; Specially treated foam-edge suspension; Stamped steel basket with hex-key input terminal; Bumped vented motor structure; Custom-designed rubber magnet boot; Imp: dual 4ohm nominal; 10; 1,200W max; 60oz + 60oz heavy, double-stacked magnet structure; 2 dual layer high-temperature Kapton(R) voice coil; SPL: 85dB; Mounting depth: 5.12;