Replacement Diaphragm at 8 ohm. For CDX-1745, CDX-1746, CDX-1730 and CDX-1731 Compression Driver QSC SP-000184-00, QSC SP-000082-GP, QSC K8, K10, K12 Also HPR152F; HPR152i And Harbinger HP-112. HP-115, HP-215 KW122, KW152, KW153