The D4400 Ti is a selenium's flagship driver. This 2inch exit compression driver offers high sensitivity, low distortion and a smooth extended frequency response, which is virtually linear to 20000Hz. Taking advantage of natures strengths, this driver is based on the ultra-light, yet structurally strong characteristics of titanium and the combined efficiency of a copper-clad, aluminium flat-wire voice coil, all resulting in top performance and quality for the pinnacle in sound reinforcement applications. Other features lending to the D4400TI’s superior performance and power handling capacity are ferrofluid loading, the use of high temperature adhesives and a Kapton former.