This Is a Brand NEW Aftermarket 8 ohm ELECTRO VOICE DIAPHRAGM. Replacement for the following EV Electro Voice Speakers SX80 SX100 SX200 SX250 SX300 SX325 SX500 List Of Some Speaker Models BK315, Eliminator models, EVI12, EVI15, EVI28, FM1202 models, FM1502 models, Force (some models), FR15-2, Gladiator, High Q, S12-E, S15 models, S-122, S-152, S-1202, S-1503ER, S-1803ER, SA152, SH-1502, SH-1512, SL12, SX80 models, SX100 models, SX200 models, SX250, SX300 models, SX325, SX500 (some models), SXA100, SXA250, T15i, T22, T22+, T52, T52+, T53, T55+, Xi-1082, ZX4 and more. Specs : Overall Diameter: 2.0"--50.8 mm Voice Coil Diameter: 1.25" --32 mm DCR: 5.0 ohms Nominal Impedance: 8 ohm Throat : 1"