Will fit all 075, 076, 077, 2402, 2402H, 2404, 2404H, 2404H-1, 2405, 2405H driver / horn Peavey HD 94 and many others This diaphragm is also an exact fit and direct replacement for P-Audio's PST-535 and PST-545 Supertweeters Impedance : 8 ohm Overall diaphragm diameter: 2 15/16-in or 75mm Voice coil diameter: 1 3/4-in or 44.4mm ZXPC 2404 2405 type replacement diaphragm Application: will fit all 075, 076, 077, 2402, 2402H, 2404, 2404H, 2404H-1, 2405, 2405H driver / horn Peavey HD 94 and many others This diaphragm is also an exact fit and direct replacement for P-Audio's PST-535 and PST-545 Supertweeters Specs Impedance : 8 ohm Overall diaphragm diameter: 2 15/16-in or 75mm Voice coil diameter: 1 3/4-in or 44.4mm