Electro Voice 81514XX Factory Speaker Replacement Horn Diaphragm, SX Series, ZX1, Eliminator, DH3, DH2010A, F01U110559 Factory Electro Voice replacement speaker diaphragm part # 81514xx for EV horn driver DH3, DH2010, and many others. Specs: Voice coil: 1.25" (32mm), Diameter: 2" (50mm), Length: 3" (150mm) , Impedance: 8 ohm, DCR: 5 ohm Factory AUTHORIZED service and parts. FREE technical support. FAST & FREE shipping to any USA address. SUPERIOR quality, LARGEST selection, and the BEST prices!