The CCA DUO features a combination of 7mm+7mm original dynamic drivers. DLC Diaphragm Dynamic Drivers have been a long industry standard in the world of HIFI audio, and are loved for its technical and tonal performance. The new generation of ultra-thin titanium coating further enhances the tensile strength of the diaphragm, giving it a responsive and speed feel. The CCA DUO Titanium Coated Driver delivers extremely high resolution with the fast speed of the driver, from bass to treble. Subbass is high-speed attack, low mid is natural and warm, giving a rich texture to the basic frequency of bass guitars and instruments. The CCA DUO comes standard with a removable 2-pin 0.75mm cable. This cable is constructed of high purity OCC copper which can provide clear sound without distortion.