Electro Voice Factory Speaker Replacement Horn Diaphragm, DH1K, Live X, F01U247593 Factory Electro Voice part # EV-F01U247593 for EV DH1K, Live X horn drivers and many other models. Specs: Voice coil: 1-7/16" (37mm), Diameter: 3-3/8" (86mm) Factory AUTHORIZED service and parts. FREE technical support. FAST & FREE shipping to any USA address. SUPERIOR quality, LARGEST selection, and the BEST prices!