2pcs Diaphragm For Behringer EUROLIVE B1220, B1520, WP2520, B412D, F1220 - 8 Ohm

Specification: 

Overall Diaphragm Diameter:  2.75" 

Voice Coil Diameter:  1.75" with titanium dome. 

Impedance:  8 ohms.  

Here is the list of some of the model #'s: 

Berhinger: 44P60A-8 

Mackie: DC10/1701-8, SRM-450 version 1, C300Z, 0008093, 0025666, SA-1521, SR-1522, S-215, S-225, S408 

P-Audio: BMD-440, BMD-450