This Is A Brand New Aftermarket Diaphragm Replacement for B&C DE24 Please Look And Make Sure The Diaphragm You Are Ordering Matches The Pictures Above & The Specs Below Voice Coil Diameter : 44.4mm 1.75" Impedance : 8 Ohm Outer Ring Diameter : 70.5mm Most Orders Placed Before 3PM and Paid thru PayPal Are Shipped The Same Day