This is a Circuit Shop Audio Diaphragm made to Peavey specs. It will fit the Peavey 14XT driver. Specs: Overall Diameter - 2.81" * Voice Coil Diameter - 1.36" * DCR - 6.5 ohm * Impedance - 8 ohm. Circuit Shop Audio diaphragms are gaurenteed to fit perfectly and sound just like the original. Dont settle for cheap "aftermarket" diaphragms.