4" single voice coil. Similar to Peavey's Legendary Black Widow speakers in that they are designed to have the basket, cone, voice coil assembly field replaceable. Pulled from working enclosures. Tested and work well. Please see pictures and video for cosmetic and functional condition. All are the same model, but some will come with the dust cap logo and others are blank. The one you get may look different than what is pictured. Will ship carefully packaged by me. Thank you.