Feature●Voice Coil Diameter : 32mm (1.25") / Outer Ring Diameter : 64mm●Dome Material : Titanium / The Center Distance Of The Two Post Terminals : 78.4mm●Impedance :8 OhmDescription This Is A Brand New Replacement Diaphragm for B&C DE35-8, D-BC MMDO358. Please Look And confirm The Diaphragm You Are Ordering Matches The Pictures Above & The Specs Below.