The powerful 15" WORF-51 with it's 4" voice coil will happily handle 2000 watts max of clean power, while the 12" WORF-21 with it's 3" voice coil will handle 1400 watts max deep loud and clear.

Both WORF-21 and WORF-51 cones are made of multi-layer composite materials and the frames are made of aluminium alloy, purposely designed to disperse heat generated by the voice coil and stay rigid under the high pressure applied during very high spl.