These are 8 ohm factory original diaphragms for the Mackie SRM450 and MANY MORE. They have titanium domes with edgewound voice coils and Nomex formers. This diaphragm can be used in the P-Audio model 440, BMD-440, BMD 440, BMD440, BMD-440S, BMD440S, ...
Model : .................................... BMD440
Manufacturer : .......................... P. Audio
Replacement Diaphragm for Selenium D205 Compression Driver. The driver has been discontinued and this diaphragm is available through only a few suppliers....
Model : .................................... RPD205