Klipsch Factory Speaker Diaphragm, K-52/K-53-Ti, Titanium, 127122 Factory Klipsch Speaker Diaphragm Part # 127122 Specs: Voice coil: 1-1/2" (38mm), Diameter: 4-3/8" (111mm), Impedance: 16 ohm, DCR: 12.4 ohm, Titanium dome with copper voice coil on Kapton former Factory AUTHORIZED service and parts. FREE technical support. FAST & FREE shipping to any USA address. SUPERIOR quality, LARGEST selection, and the BEST prices!