Bowers & Wilkins DM 604 S4 25,4 mm Titanium, Silk Side Diaphragm 4 Ohm
This is 4 ohm 25,4 mm aftermarket Titanium, Silk Side domes diaphragms with edgewound voice coils and nomex formers. Please check your speaker tweeter model and dimensions before ordering to be sure you are getting the correct diaphragm.